@article{SchubaSchneiderHaverkort1998,
  author    = {Schuba, Marko and Schneider, Gaby and Haverkort, Boudewijn R.},
  title     = {QNA-MC: A Performance Evaluation Tool for Communication Networks with Multicast Data Streams / Schneider, G. ; Schuba, M. ; Haverkort, B. R.},
  series = {Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)},
  journal   = {Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {3-540-64949-2},
  pages     = {105 -- 116},
  year      = {1998},
  language  = {en}
}
@article{SchubaReichlKesdoganetal.1998,
  author    = {Schuba, Marko and Reichl, Peter and Kesdogan, Dogan and Jungh{\"a}rtchen, Klaus},
  title     = {Simulative Performance Evaluation of the Temporary Pseudonym Method for Protecting Location Information in GSM Networks / Reichl, P. ; Kesdogan, D. ; Jungh{\"a}rtchen, K. ; Schuba, M.},
  series = {Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)},
  journal   = {Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {3-540-64949-2},
  pages     = {105 -- 116},
  year      = {1998},
  language  = {en}
}
@article{EngelsDoege1998,
  author    = {Engels, Elmar and Doege, E.},
  title     = {Optimizing the number of strokes for punching machines using a fuzzy controlled electrohydraulic damping system / Doege, E. ; Engels, E.},
  series = {ICME 98, CIRP International Seminar on Intelligent Computation in Manufacturing Engineering, Proceedings, Capri, IT, Jul 1-3, 1998},
  journal   = {ICME 98, CIRP International Seminar on Intelligent Computation in Manufacturing Engineering, Proceedings, Capri, IT, Jul 1-3, 1998},
  address   = {Capri},
  pages     = {471 -- 478},
  year      = {1998},
  language  = {en}
}
@article{KallweitUchiyamaSiekmann1998,
  author    = {Kallweit, Stephan and Uchiyama, R. and Siekmann, H.},
  title     = {Fault Diagnostic Method for Pump Running Conditions Based on Process Modeling and Neural Network / Uchiyama, R. ; Kallweit, S. ; Siekmann, H.},
  series = {International Journal of Rotating Machinery. 4 (1998), H. 1},
  journal   = {International Journal of Rotating Machinery. 4 (1998), H. 1},
  isbn      = {1542-3034},
  pages     = {49 -- 59},
  year      = {1998},
  language  = {en}
}
@article{MelissNeskakisPlettnerMarlianietal.1998,
  author    = {Meliß, Michael and Neskakis, A. and Plettner-Marliani, J. and Lange, C. and H{\"o}velmann, A. and Schumacher, J.},
  title     = {Waste water recycling supplied by renewable energies : basic conditions and possible treatment technologies},
  series = {Renewable energy. Vol. 14 (1998), iss. 1-4. 6th Arab International Solar Energy Conference: Bringing Solar Energy into the Daylight, Muscat, Sultanate of Oman, 29.03.-01.04.1998},
  journal   = {Renewable energy. Vol. 14 (1998), iss. 1-4. 6th Arab International Solar Energy Conference: Bringing Solar Energy into the Daylight, Muscat, Sultanate of Oman, 29.03.-01.04.1998},
  issn      = {1879-0682 (E-Book); 0960-1481 (Print)},
  pages     = {325 -- 331},
  year      = {1998},
  language  = {en}
}
@article{FoersterKordosMarsoetal.1998,
  author    = {F{\"o}rster, Arnold and Kordos, P. and Marso, M. and R{\"u}ders, F.},
  title     = {550 GHz bandwidth photodetector on low-temperature grown molecular-beam epitaxial GaAs. Kordos, P., F{\"o}rster, A.; Marso, M.; R{\"u}ders, F.},
  series = {Electronics Letters. 34 (1998), H. 1},
  journal   = {Electronics Letters. 34 (1998), H. 1},
  isbn      = {1350-911X},
  pages     = {119 -- 120},
  year      = {1998},
  language  = {en}
}
@article{FoersterHartmannDiekeretal.1998,
  author    = {F{\"o}rster, Arnold and Hartmann, A. and Dieker, Ch. and Hollfelder, M.},
  title     = {Spontaneous formation of tilted AlGaAS/GaAs superlattice during AlGaAs growth. Hartmann, A.; Dieker, Ch.; Hollfelder, M.; Hardtdegen, H.; F{\"o}rster, A.; L{\"u}th, H.},
  series = {Applied Surface Science. 123-124 (1998)},
  journal   = {Applied Surface Science. 123-124 (1998)},
  isbn      = {0169-4332},
  pages     = {704 -- 709},
  year      = {1998},
  language  = {en}
}
@article{TemizArtmannAtesUeretmenetal.1998,
  author    = {Temiz Artmann, Ayseg{\"u}l and Ates, H. and {\"U}retmen, {\"O}. and Andac, K.},
  title     = {Erythrocyte deformability in high-tension and normal tension glaucoma. Ates, H.; {\"U}retmen, {\"O}.; Temiz, A.; Andac, K.},
  series = {International Ophthalmology. 22 (1998), H. 1},
  journal   = {International Ophthalmology. 22 (1998), H. 1},
  isbn      = {0165-5701},
  pages     = {7 -- 12},
  year      = {1998},
  language  = {en}
}
@article{TemizArtmannBaskurtMeiselman1998,
  author    = {Temiz Artmann, Ayseg{\"u}l and Baskurt, O. K. and Meiselman, H. J.},
  title     = {Effect of superoxide anions on red blood cell rheologic properties. Baskurt, O. K.; Temiz, A.; Meiselman, H. J.},
  series = {Free Radical Biology and Medicine. 24 (1998), H. 1},
  journal   = {Free Radical Biology and Medicine. 24 (1998), H. 1},
  isbn      = {0891-5849},
  pages     = {102 -- 110},
  year      = {1998},
  language  = {en}
}
@article{FoersterMorvicBetko1998,
  author    = {F{\"o}rster, Arnold and Morvic, M. and Betko, J.},
  title     = {On the hopping and band conductivity in molecular-beam epitaxial low-temperature grown GaAs / M. Morvic ; J. Betko ; J. Nov{\´a}k ... A. F{\"o}rster},
  series = {Physica status solidi / B, Basic research. 205 (1998), H. 1},
  journal   = {Physica status solidi / B, Basic research. 205 (1998), H. 1},
  isbn      = {1521-3951},
  pages     = {125 -- 128},
  year      = {1998},
  language  = {en}
}
@article{BiselliKlyushnichenkoRodenbrocketal.1998,
  author    = {Biselli, Manfred and Klyushnichenko, Vadim and Rodenbrock, Anja and Th{\"o}mmes, J{\"o}rg},
  title     = {Analysis of Hybridoma Cell Culture Processes by SDS-Gel Capillary Electrophoresis and matrix-assisted laser desorption ionization-time-of-flight MS / Vadim Klyushnichenko, Anja Rodenbrock, J{\"o}rg Th{\"o}mmes, Maria-Regina Kula, Holger Heine, Manfred Biselli},
  series = {Biotechnology and Applied Biochemistry. 27 (1998), H. 3},
  journal   = {Biotechnology and Applied Biochemistry. 27 (1998), H. 3},
  isbn      = {0885-4513},
  pages     = {181 -- 188},
  year      = {1998},
  language  = {en}
}
@article{BiselliNoll1998,
  author    = {Biselli, Manfred and Noll, T.},
  title     = {Dielectric spectroscopy in the cultivation of suspended and immobilized hybridoma cells / Noll, T.; Biselli, M.},
  series = {Journal of Biotechnology. 63 (1998), H. 3},
  journal   = {Journal of Biotechnology. 63 (1998), H. 3},
  isbn      = {0168-1656},
  pages     = {187 -- 198},
  year      = {1998},
  language  = {en}
}
@article{SchererHoerKranertetal.1998,
  author    = {Scherer, Ulrich W. and H{\"o}r, G. and Kranert, W. T. and Maul, F. D.},
  title     = {Gated Metabolic Positron Emission Tomography (GAPET) of Myocardium: 18F-FDG/PET to optimize Recognition of Myocardial Hibernation / G. H{\"o}r, W.T. Kranert, F.D. Maul, O. Schr{\"o}der, A. Karimian-Tatriz, O. Geb, R.P. Baum, U.W. Scherer},
  series = {Nuclear Medicine Communications. 19 (1998)},
  journal   = {Nuclear Medicine Communications. 19 (1998)},
  isbn      = {0143-3636},
  pages     = {535 -- 545},
  year      = {1998},
  language  = {en}
}
@article{KleinesZiemonsZwoll1998,
  author    = {Kleines, H. and Ziemons, Karl and Zwoll, K.},
  title     = {Experiences with ATM in a multivendor pilot system at Forschungszentrum J{\"u}lich},
  series = {IEEE Transactions on Nuclear Science},
  volume    = {45},
  journal   = {IEEE Transactions on Nuclear Science},
  number    = {4},
  issn      = {0018-9499},
  pages     = {1867 -- 1871},
  year      = {1998},
  abstract  = {The ATM technology for high speed serial transmission provides a new quality of communication by introducing novel features in a LAN environment, especially support of real time communication, of both LAN and WAN communication and of multimedia streams. In order to evaluate ATM for future DAQ systems and remote control systems as well as for a high speed picture archiving and communications system for medical images, Forschungszentrum Julich has build up a pilot system for the evaluation of ATM and standard low cost multimedia systems. It is a heterogeneous multivendor system containing a variety of switches and desktop solutions, employing different protocol options of ATM. The tests conducted in the pilot system revealed major difficulties regarding stability, interoperability and performance. The paper presents motivations, layout and results of the pilot system. Discussion of results concentrates on performance issues relevant for realistic applications, e.g., connection to a RAID system via NFS over ATM},
  language  = {en}
}
@article{WeckesserGriessmeierSchmidtetal.1998,
  author    = {Weckesser, Martin and Grießmeier, Martin and Schmidt, Daniela and Sonnenberg, Frank and Ziemons, Karl and Kemna, Lars and Holschbach, Marcus and Langen, Karl-J. and M{\"u}ller-G{\"a}rtner, Hans-W.},
  title     = {Iodine-123 α-methyl tyrosine single-photon emission tomography of cerebral gliomas: standardised evaluation of tumour uptake and extent},
  series = {European Journal of Nuclear Medicine},
  volume    = {25},
  journal   = {European Journal of Nuclear Medicine},
  number    = {2},
  isbn      = {1619-7089},
  pages     = {150 -- 156},
  year      = {1998},
  abstract  = {Single-photon emission tomography (SPET) with the amino acid analogue l-3-[123I]iodo-α-methyl tyrosine (IMT) is helpful in the diagnosis and monitoring of cerebral gliomas. Radiolabelled amino acids seem to reflect tumour infiltration more specifically than conventional methods like magnetic resonance imaging and computed tomography. Automatic tumour delineation based on maximal tumour uptake may cause an overestimation of mean tumour uptake and an underestimation of tumour extension in tumours with circumscribed peaks. The aim of this study was to develop a program for tumour delineation and calculation of mean tumour uptake which takes into account the mean background activity and is thus optimised to the problem of tumour definition in IMT SPET. Using the frequency distribution of pixel intensities of the tomograms a program was developed which automatically detects a reference brain region and draws an isocontour region around the tumour taking into account mean brain radioactivity. Tumour area and tumour/brain ratios were calculated. A three-compartment phantom was simulated to test the program. The program was applied to IMT SPET studies of 20 patients with cerebral gliomas and was compared to the results of manual analysis by three different investigators. Activity ratios and chamber extension of the phantom were correctly calculated by the automatic analysis. A method based on image maxima alone failed to determine chamber extension correctly. Manual region of interest analysis in patient studies resulted in a mean inter-observer standard deviation of 8.7\%±6.1\% (range 2.7\%-25.0\%). The mean value of the results of the manual analysis showed a significant correlation to the results of the automatic analysis (r = 0.91, P<0.0001 for the uptake ratio; r = 0.87, P<0.0001 for the tumour area). We conclude that the algorithm proposed simplifies the calculation of uptake ratios and may be used for observer-independent evaluation of IMT SPET studies. Three-dimensional tumour recognition and transfer to co-registered morphological images based on this program may be useful for the planning of surgical and radiation treatment.},
  language  = {en}
}
@inproceedings{LindemannRunge1998,
  author    = {Lindemann, Markus and Runge, Alexander},
  title     = {Electronic contracting within the reference model for electronic markets},
  series = {Proceedings of the Sixth European Conference on Information Systems, ECIS 1998, Aix-en-Provence, France, June 4-6, 1998 / Walter Baets (ed.)},
  booktitle = {Proceedings of the Sixth European Conference on Information Systems, ECIS 1998, Aix-en-Provence, France, June 4-6, 1998 / Walter Baets (ed.)},
  publisher = {Euro-Arab Management School},
  isbn      = {849238333X},
  pages     = {44 -- 59},
  year      = {1998},
  language  = {en}
}
@inproceedings{SchmidLindemann1998,
  author    = {Schmid, Beat F. and Lindemann, Markus},
  title     = {Elements of a reference model for electronic markets},
  series = {System sciences : proceedings. Vol. 4: Internet and the digital economy track / Thirty-first Hawaii International Conference on Systems Science : HICSS'98, Big Island of Hawaii, January 6-9, 1998 / ed. by Robert W. Blanning and David R. King. IEEE catalog ; 98TB100216},
  booktitle = {System sciences : proceedings. Vol. 4: Internet and the digital economy track / Thirty-first Hawaii International Conference on Systems Science : HICSS'98, Big Island of Hawaii, January 6-9, 1998 / ed. by Robert W. Blanning and David R. King. IEEE catalog ; 98TB100216},
  publisher = {IEEE Computer Society Pr.},
  address   = {Los Alamos, CA},
  isbn      = {0-8186-8242-6},
  pages     = {193 -- 201},
  year      = {1998},
  language  = {en}
}
@incollection{Weber1998,
  author    = {Weber, Hans-Joachim},
  title     = {Applied physics of compressible and incompressible fluids},
  series = {Critical care nephrology / [Hrsg.:] Claudio Ronco and Rinaldo Bellomo},
  booktitle = {Critical care nephrology / [Hrsg.:] Claudio Ronco and Rinaldo Bellomo},
  publisher = {Springer},
  address   = {Dordrecht},
  isbn      = {978-94-010-6306-7},
  pages     = {63 -- 84},
  year      = {1998},
  language  = {en}
}
@incollection{Dikta1998,
  author    = {Dikta, Gerhard},
  title     = {Fundamentals of applied probability and basic statistics},
  series = {Critical care nephrology / [Hrsg.:] Claudio Ronco and Rinaldo Bellomo},
  booktitle = {Critical care nephrology / [Hrsg.:] Claudio Ronco and Rinaldo Bellomo},
  publisher = {Springer},
  address   = {Dordrecht},
  isbn      = {978-94-010-6306-7},
  pages     = {51 -- 61},
  year      = {1998},
  language  = {en}
}
@article{FoersterHaukeJakumeitetal.1998,
  author    = {F{\"o}rster, Arnold and Hauke, M. and Jakumeit, J. and Krafft, B.},
  title     = {DX Centers in Al0.3Ga0.7As/GaAs Analyzed by Point Contact Measurements. Hauke, M.; Jakumeit, J.; Krafft, B.; Nimtz, G.; F{\"o}rster, A.; L{\"u}th, H.},
  series = {Journal of Applied Physics. 84 (1998), H. 4},
  journal   = {Journal of Applied Physics. 84 (1998), H. 4},
  isbn      = {1089-7550},
  pages     = {2034 -- 2039},
  year      = {1998},
  language  = {en}
}