@article{WernerWagnerYoshinobuetal.2013,
  author    = {Werner, Frederik and Wagner, Torsten and Yoshinobu, Tatsuo and Keusgen, Michael and Sch{\"o}ning, Michael Josef},
  title     = {Frequency behaviour of light-addressable potentiometric sensors},
  series = {Physica Status Solidi (A)},
  volume    = {210},
  journal   = {Physica Status Solidi (A)},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-396X ; 0031-8965},
  doi       = {10.1002/pssa.201200929},
  pages     = {884 -- 891},
  year      = {2013},
  abstract  = {Light-addressable potentiometric sensors (LAPS) are semiconductor-based potentiometric sensors, with the advantage to detect the concentration of a chemical species in a liquid solution above the sensor surface in a spatially resolved manner. The addressing is achieved by a modulated and focused light source illuminating the semiconductor and generating a concentration-depending photocurrent. This work introduces a LAPS set-up that is able to monitor the electrical impedance in addition to the photocurrent. The impedance spectra of a LAPS structure, with and without illumination, as well as the frequency behaviour of the LAPS measurement are investigated. The measurements are supported by electrical equivalent circuits to explain the impedance and the LAPS-frequency behaviour. The work investigates the influence of different parameters on the frequency behaviour of the LAPS. Furthermore, the phase shift of the photocurrent, the influence of the surface potential as well as the changes of the sensor impedance will be discussed.},
  language  = {en}
}
@article{SchiffelsPinkenburgScheldenetal.2013,
  author    = {Schiffels, Johannes and Pinkenburg, Olaf and Schelden, Maximilian and Aboulnaga, El-Hussiny A. A. and Baumann, Marcus and Selmer, Thorsten},
  title     = {An innovative cloning platform enables large-scale production and maturation of an oxygen-tolerant [NiFe]-hydrogenase from cupriavidus necator in Escherichia coli},
  series = {PLOS one. 2013},
  journal   = {PLOS one. 2013},
  publisher = {Public Library of Science},
  address   = {San Francisco, California},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0068812},
  year      = {2013},
  language  = {en}
}
@article{MuellerBillmaierMueller2013,
  author    = {M{\"u}ller, Karsten and Billmaier, Karl and M{\"u}ller, Ernst A.},
  title     = {Abwasserw{\"a}rmenutzung},
  series = {Wasserwirtschaft, Wassertechnik : wwt. 2013, H. 5},
  journal   = {Wasserwirtschaft, Wassertechnik : wwt. 2013, H. 5},
  publisher = {Deutscher Fachverlag},
  address   = {Frankfurt am Main},
  issn      = {1438-5716},
  pages     = {24 -- 26},
  year      = {2013},
  language  = {de}
}
@article{Timme2013,
  author    = {Timme, Michael},
  title     = {Begrenzung von Mietb{\"u}rgschaften gem. \S 551 Abs. 4 BGB?},
  series = {Monatsschrift f{\"u}r deutsches Recht : MdR},
  volume    = {16},
  journal   = {Monatsschrift f{\"u}r deutsches Recht : MdR},
  publisher = {Verlag Dr. Otto Schmidt},
  address   = {K{\"o}ln},
  issn      = {0340-1812 (Print) ; 2194-4202 (E-Journal)},
  pages     = {948 -- 949},
  year      = {2013},
  language  = {de}
}
@article{Timme2013,
  author    = {Timme, Michael},
  title     = {Begrenzung von Mietb{\"u}rgschaften gem. \S 551 Abs. 4 BGB?},
  series = {Der Miet-Rechts-Berater : MietRB},
  journal   = {Der Miet-Rechts-Berater : MietRB},
  number    = {8},
  publisher = {Verlag Dr. Otto Schmidt},
  address   = {K{\"o}ln},
  issn      = {1612-040X},
  pages     = {248 -- 249},
  year      = {2013},
  language  = {de}
}
@article{SchneiderSchneider2013,
  author    = {Schneider, Bettina and Schneider, Wilhelm},
  title     = {Rechnungslegung nach IFRS im Vergleich zum HGB},
  series = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Examen, Berufseinstieg und Fortbildung},
  journal   = {Das Wirtschaftsstudium : wisu ; Zeitschrift f{\"u}r Ausbildung, Examen, Berufseinstieg und Fortbildung},
  publisher = {Lange},
  address   = {D{\"u}sseldorf},
  issn      = {0340-3084},
  pages     = {536 -- 541},
  year      = {2013},
  language  = {de}
}
@article{Mueller2013,
  author    = {M{\"u}ller, Thomas},
  title     = {Aufweichung der Gewaltenteilung und Demokratieverlust - Achtung vor dem Parlament. Darstellung einer Rechtsch{\"o}pfung der Exekutive im Umfeld des \S15 AStG},
  series = {Der Betrieb},
  journal   = {Der Betrieb},
  number    = {11},
  publisher = {Fachmedien Otto Schmidt},
  address   = {D{\"u}sseldorf},
  issn      = {0005-9935},
  pages     = {542 -- 548},
  year      = {2013},
  language  = {de}
}
@article{ItabashiKosakaMiyamotoetal.2013,
  author    = {Itabashi, Akinori and Kosaka, Naoki and Miyamoto, Ko-ichiro and Wagner, Torsten and Sch{\"o}ning, Michael Josef},
  title     = {High-speed chemical imaging system based on front-side-illuminated LAPS},
  series = {Sensors and actuators B: Chemical},
  volume    = {182},
  journal   = {Sensors and actuators B: Chemical},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-3077},
  doi       = {10.1016/j.snb.2013.03.016},
  pages     = {315 -- 321},
  year      = {2013},
  abstract  = {The chemical imaging sensor is a semiconductor-based chemical sensor that can visualize the spatial distribution of specific ions on the sensing surface. The conventional chemical imaging system based on the light-addressable potentiometric sensor (LAPS), however, required a long time to obtain a chemical image, due to the slow mechanical scan of a single light beam. For high-speed imaging, a plurality of light beams modulated at different frequencies can be employed to measure the ion concentrations simultaneously at different locations on the sensor plate by frequency division multiplex (FDM). However, the conventional measurement geometry of back-side illumination limited the bandwidth of the modulation frequency required for FDM measurement, because of the low-pass filtering characteristics of carrier diffusion in the Si substrate. In this study, a high-speed chemical imaging system based on front-side-illuminated LAPS was developed, which achieved high-speed spatiotemporal recording of pH change at a rate of 70 frames per second.},
  language  = {en}
}
@article{Frings2013,
  author    = {Frings, Michael},
  title     = {{\"A}nderungen zur Haftung und Verg{\"u}tung im Vereins- und Stiftungsrecht},
  series = {Neue Wirtschaftsbriefe NWB Steuer- und Wirtschaftsrecht},
  journal   = {Neue Wirtschaftsbriefe NWB Steuer- und Wirtschaftsrecht},
  publisher = {NWB Verlag},
  address   = {Herne},
  issn      = {0028-3460},
  pages     = {693 -- 699},
  year      = {2013},
  language  = {de}
}
@article{Frings2013,
  author    = {Frings, Michael},
  title     = {Begrenzung von vertraglichen H{\"o}chstfristen f{\"u}r Zahlungen und Abnahmen},
  series = {Neue Wirtschaftsbriefe NWB Steuer- und Wirtschaftsrecht},
  journal   = {Neue Wirtschaftsbriefe NWB Steuer- und Wirtschaftsrecht},
  publisher = {NWB Verlag},
  address   = {Herne},
  issn      = {0028-3460},
  pages     = {49 -- 56},
  year      = {2013},
  language  = {de}
}