@article{KueppersSteffenHellmuthetal.2014,
  author    = {K{\"u}ppers, Tobias and Steffen, Victoria and Hellmuth, Hendrik and O'Connell, Timothy and Bongaerts, Johannes and Maurer, Karl-Heinz and Wiechert, Wolfgang},
  title     = {Developing a new production host from a blueprint: Bacillus pumilus as an industrial enzyme producer},
  series = {Microbial cell factories},
  volume    = {13},
  journal   = {Microbial cell factories},
  publisher = {BioMed Central},
  address   = {London},
  issn      = {1475-2859 (E-Journal)},
  doi       = {10.1186/1475-2859-13-46},
  pages     = {Article No. 46},
  year      = {2014},
  language  = {en}
}
@article{GuoMiyamotoWagneretal.2014,
  author    = {Guo, Yuanyuan and Miyamoto, Ko-ichiro and Wagner, Torsten and Sch{\"o}ning, Michael Josef and Yoshinobu, Tatsuo},
  title     = {Theoretical study and simulation of light-addressable potentiometric sensors},
  series = {Physica status solidi (A) : applications and materials},
  volume    = {211},
  journal   = {Physica status solidi (A) : applications and materials},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0031-8965},
  doi       = {10.1002/pssa.201330354},
  pages     = {1467 -- 1472},
  year      = {2014},
  abstract  = {The light-addressable potentiometric sensor (LAPS) is a semiconductor-based potentiometric sensor using a light probe with an ability of detecting the concentration of biochemical species in a spatially resolved manner. As an important biomedical sensor, research has been conducted to improve its performance, for instance, to realize high-speed measurement. In this work, the idea of facilitating the device-level simulation, instead of using an equivalent-circuit model, is presented for detailed analysis and optimization of the performance of the LAPS. Both carrier distribution and photocurrent response have been simulated to provide new insight into both amplitude-mode and phase-mode operations of the LAPS. Various device parameters can be examined to effectively design and optimize the LAPS structures and setups for enhanced performance.},
  language  = {en}
}
@article{SmithBaumannWilsonetal.1987,
  author    = {Smith, Walker O. and Baumann, Marcus and Wilson, David L. and Aletsee, Ludwig},
  title     = {Phytoplankton biomass and productivity in the marginal ice zone of the Fram Strait during summer 1984},
  series = {Journal of geophysical research},
  volume    = {Vol. 92},
  journal   = {Journal of geophysical research},
  number    = {Iss. C7},
  issn      = {2156-2202 (E-Journal); 2169-9291 (E-Journal); 0148-0227 (Print); 2169-9275 (Print)},
  pages     = {6777 -- 6786},
  year      = {1987},
  language  = {en}
}
@article{JahnkeBaumann1987,
  author    = {Jahnke, J. and Baumann, Marcus},
  title     = {Differentiation between Phaeocystis pouchetii (Har.) Lagerheim and Phaeocystis globosa Scherffel},
  series = {Hydrobiological bulletin},
  volume    = {Vol. 21},
  journal   = {Hydrobiological bulletin},
  number    = {Iss. 2},
  issn      = {0165-1404 (Print); 1573-5125 (E-Journal)},
  pages     = {141 -- 147},
  year      = {1987},
  language  = {en}
}
@inproceedings{Baumann1989,
  author    = {Baumann, Marcus},
  title     = {Primary production and phytoplankton growth in the marginal ice zone of the Fram Strait and the interpretation of the field data with autecological experiments (Abstract)},
  series = {Oceanography and biology of Arctic seas : selected papers from the ICES Symposium on Marine Sciences of the Arctic and Subarctic Regions, held in Santander, 28 - 30 September 1987. (Rapports et proc{\`e}s-verbaux des r{\´e}unions / Conseil International pour l'Exploration de la Mer ; 188)},
  booktitle = {Oceanography and biology of Arctic seas : selected papers from the ICES Symposium on Marine Sciences of the Arctic and Subarctic Regions, held in Santander, 28 - 30 September 1987. (Rapports et proc{\`e}s-verbaux des r{\´e}unions / Conseil International pour l'Exploration de la Mer ; 188)},
  editor    = {Hempel, G.},
  publisher = {International Council for the Exploration of the Sea},
  address   = {Copenhagen},
  organization    = {Symposium on Marine Sciences of the Arctic and Subarctic Regions <1987, Santander>},
  pages     = {128},
  year      = {1989},
  language  = {en}
}
@article{AletseeBaumann1991,
  author    = {Aletsee, Ludwig and Baumann, Marcus},
  title     = {A laboratory incubator equipped with facilities to automatically simulate natural irradiance},
  series = {Boletim do Instituto Oceanogr{\´a}fico / Universidade de S{\~a}o Paulo},
  volume    = {Vol. 39},
  journal   = {Boletim do Instituto Oceanogr{\´a}fico / Universidade de S{\~a}o Paulo},
  number    = {No. 2},
  issn      = {1982-436X; 0080-6331},
  pages     = {155 -- 159},
  year      = {1991},
  language  = {en}
}
@article{TuegBaumann1994,
  author    = {T{\"u}g, Helmut and Baumann, Marcus},
  title     = {Problems of UV-B radiation measurements in biological research : critical remarks on current techniques and suggestions for improvements},
  series = {Geophysical research letters},
  volume    = {Vol. 21},
  journal   = {Geophysical research letters},
  number    = {Iss. 8},
  issn      = {1944-8007 (E-Journal); 0094-8276 (Print)},
  pages     = {689 -- 692},
  year      = {1994},
  language  = {en}
}
@article{MedlinLangeBaumann1994,
  author    = {Medlin, L. K. and Lange, M. and Baumann, Marcus},
  title     = {Genetic differentiation among three colony-forming species of Phaeocystis : further evidence for the phylogeny of the Prymnesiophyta},
  series = {Phycologia},
  volume    = {Vol. 33},
  journal   = {Phycologia},
  number    = {Iss. 3},
  issn      = {0031-8884},
  pages     = {199 -- 212},
  year      = {1994},
  language  = {en}
}
@incollection{MedlinBarkerBaumannetal.1994,
  author    = {Medlin, L. K. and Barker, G. L. A. and Baumann, Marcus and Hayes, P. K.},
  title     = {Molecular biology and systematics},
  series = {The Haptophyte Algae (Special volume / Systematics Association : 51)},
  booktitle = {The Haptophyte Algae (Special volume / Systematics Association : 51)},
  publisher = {Clarendon Press},
  address   = {Oxford},
  isbn      = {0-19-857772-9},
  pages     = {393 -- 411},
  year      = {1994},
  language  = {en}
}
@article{TuegBaumann1995,
  author    = {T{\"u}g, Helmut and Baumann, Marcus},
  title     = {Reply to the comments by R.L. McKenzie and P.V. Johnston on our paper "Problems of UV-B radiation measurements in biological research: Critical Remarks on current techniques and suggestions for improvements"},
  series = {Geophysical research letters},
  volume    = {Vol. 22},
  journal   = {Geophysical research letters},
  number    = {Iss. 9},
  issn      = {1944-8007 (E-Journal); 0094-8276 (Print)},
  pages     = {1159 -- 1160},
  year      = {1995},
  language  = {en}
}
@inproceedings{BrandiniBaumann1997,
  author    = {Brandini, Frederico P. and Baumann, Marcus},
  title     = {The potential role of melted 'brown ice' as sources of chelators and ammonia to the surface waters of the Weddell Sea, Antarctica},
  series = {Proceedings of the NIPR Symposium on Polar Biology : 10},
  booktitle = {Proceedings of the NIPR Symposium on Polar Biology : 10},
  address   = {Tokyo},
  organization    = {National Institute of Polar Research},
  issn      = {0914-563X},
  pages     = {1 -- 13},
  year      = {1997},
  language  = {en}
}
@article{Baumann1996,
  author    = {Baumann, Marcus},
  title     = {Algenbl{\"u}ten \& Treibhauseffekt : Wechselwirkungen mit anthropogenen Aktivit{\"a}ten},
  series = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  volume    = {18},
  journal   = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  number    = {81},
  issn      = {0172-1623},
  pages     = {6 -- 11},
  year      = {1996},
  language  = {de}
}
@article{MartinezJakobTuetal.2013,
  author    = {Martinez, Ronny and Jakob, Felix and Tu, Ran and Siegert, Petra and Maurer, Karl-Heinz and Schwaneberg, Ulrich},
  title     = {Increasing activity and thermal resistance of Bacillus gibsonii alkaline protease (BgAP) by directed evolution},
  series = {Biotechnology and bioengineering},
  volume    = {Vol. 110},
  journal   = {Biotechnology and bioengineering},
  number    = {Iss. 3},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1097-0290 (E-Journal); 0006-3592 (Print); 0368-1467 (Print)},
  pages     = {711 -- 720},
  year      = {2013},
  language  = {en}
}
@article{JakobMartinezMandaweetal.2013,
  author    = {Jakob, Felix and Martinez, Ronny and Mandawe, John and Hellmuth, Hendrik and Siegert, Petra and Maurer, Karl-Heinz and Schwaneberg, Ulrich},
  title     = {Surface charge engineering of a Bacillus gibsonii subtilisin protease},
  series = {Applied microbiology and biotechnology},
  volume    = {Vol. 97},
  journal   = {Applied microbiology and biotechnology},
  number    = {Iss. 15},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print)},
  pages     = {6793 -- 6802},
  year      = {2013},
  language  = {en}
}
@article{NiehausGaborWielandetal.2011,
  author    = {Niehaus, F. and Gabor, E. and Wieland, S. and Siegert, Petra and Maurer, Karl-Heinz and Eck, J.},
  title     = {Enzymes for the laundry industries: tapping the vast metagenomic pool of alkaline proteases},
  series = {Microbial biotechnology},
  volume    = {Vol. 4},
  journal   = {Microbial biotechnology},
  number    = {Iss. 6},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print)},
  pages     = {767 -- 776},
  year      = {2011},
  language  = {en}
}
@article{RibitschHeumannKarletal.2012,
  author    = {Ribitsch, D. and Heumann, S. and Karl, W. and Gerlach, J. and Leber, R. and Birner-Gruenberger, R. and Gruber, K. and Eiteljoerg, I. and Remler, P. and Siegert, Petra and Lange, J. and Maurer, Karl-Heinz and Berg, G. and Guebitz, G. M. and Schwab, H.},
  title     = {Extracellular serine proteases from Stenotrophomonas maltophilia: Screening, isolation and heterologous expression in E. coli},
  series = {Journal of biotechnology},
  volume    = {157},
  journal   = {Journal of biotechnology},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-4863 (E-Journal); 0168-1656 (Print)},
  doi       = {10.1016/j.jbiotec.2011.09.025},
  pages     = {140 -- 147},
  year      = {2012},
  abstract  = {A large strain collection comprising antagonistic bacteria was screened for novel detergent proteases. Several strains displayed protease activity on agar plates containing skim milk but were inactive in liquid media. Encapsulation of cells in alginate beads induced protease production. Stenotrophomonas maltophilia emerged as best performer under washing conditions. For identification of wash-active proteases, four extracellular serine proteases called StmPr1, StmPr2, StmPr3 and StmPr4 were cloned. StmPr2 and StmPr4 were sufficiently overexpressed in E. coli. Expression of StmPr1 and StmPr3 resulted in unprocessed, insoluble protein. Truncation of most of the C-terminal domain which has been identified by enzyme modeling succeeded in expression of soluble, active StmPr1 but failed in case of StmPr3. From laundry application tests StmPr2 turned out to be a highly wash-active protease at 45 °C. Specific activity of StmPr2 determined with suc-l-Ala-l-Ala-l-Pro-l-Phe-p-nitroanilide as the substrate was 17 ± 2 U/mg. In addition we determined the kinetic parameters and cleavage preferences of protease StmPr2.},
  language  = {en}
}
@misc{SiegertMerkelKluinetal.2009,
  author    = {Siegert, Petra and Merkel, Marion and Kluin, Cornelia and O'Connell, Timothy and Maurer, Karl-Heinz},
  title     = {Wasch- und Reinigungsmittel enthaltend Proteasen aus Xanthomonas [Offenlegungsschrift]},
  publisher = {Deutsches Patent- und Markenamt / WIPO},
  address   = {M{\"u}nchen / Genf},
  pages     = {1 -- 15},
  year      = {2009},
  language  = {de}
}
@article{MeinersBaumann1997,
  author    = {Meiners, Klaus and Baumann, Marcus},
  title     = {Lokale Beitr{\"a}ge zum globalen Klimaschutz},
  series = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  volume    = {19},
  journal   = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  number    = {84},
  issn      = {0172-1623},
  pages     = {6 -- 12},
  year      = {1997},
  language  = {de}
}
@article{BaumannGronsfeldSchuetzLembach1997,
  author    = {Baumann, Marcus and Gronsfeld, A. and Sch{\"u}tz-Lembach, G.},
  title     = {Nachdenklichkeit {\"u}ber Nachhaltigkeit : wie uns ein neues Wort alte Probleme neu entdecken l{\"a}ßt},
  series = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  volume    = {19},
  journal   = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  number    = {87},
  issn      = {0172-1623},
  pages     = {6 -- 11},
  year      = {1997},
  language  = {de}
}
@article{BaumannPeschel1998,
  author    = {Baumann, Marcus and Peschel, G.},
  title     = {Aktuelle Entwicklungen zur Luftreinhaltung in der Stadt Aachen},
  series = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  volume    = {20},
  journal   = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  number    = {91},
  issn      = {0172-1623},
  pages     = {22 -- 29},
  year      = {1998},
  language  = {de}
}