@article{PfaeffleStephan2011,
  author    = {Pf{\"a}ffle, Frank and Stephan, Christoph A.},
  title     = {The holst action by the spectral action principle},
  series = {Communications in mathematical physics},
  volume    = {307},
  journal   = {Communications in mathematical physics},
  number    = {1},
  publisher = {Springer},
  address   = {New York},
  issn      = {0010-3616},
  doi       = {10.1007/s00220-011-1303-0},
  pages     = {261 -- 273},
  year      = {2011},
  abstract  = {We investigate the Holst action for closed Riemannian 4-manifolds with orthogonal connections. For connections whose torsion has zero Cartan type component we show that the Holst action can be recovered from the heat asymptotics for the natural Dirac operator acting on left-handed spinor fields.},
  language  = {en}
}
@misc{PfaeffleStephan2012,
  author    = {Pf{\"a}ffle, Frank and Stephan, Christoph A.},
  title     = {The holst action by the spectral action principle (vol 307, pg 261, 2011)},
  series = {Communications in mathematical physics},
  volume    = {313},
  journal   = {Communications in mathematical physics},
  number    = {1},
  publisher = {Springer},
  address   = {New York},
  issn      = {0010-3616},
  doi       = {10.1007/s00220-012-1507-y},
  pages     = {291 -- 292},
  year      = {2012},
  language  = {en}
}
@unpublished{PfaeffleStephan2012,
  author    = {Pf{\"a}ffle, Frank and Stephan, Christoph A.},
  title     = {On gravity, torsion and the spectral action principle},
  issn      = {2193-6943},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-59989},
  year      = {2012},
  abstract  = {We consider compact Riemannian spin manifolds without boundary equipped with orthogonal connections. We investigate the induced Dirac operators and the associated commutative spectral triples. In case of dimension four and totally anti-symmetric torsion we compute the Chamseddine-Connes spectral action, deduce the equations of motions and discuss critical points.},
  language  = {en}
}
@unpublished{PfaeffleStephan2012,
  author    = {Pf{\"a}ffle, Frank and Stephan, Christoph A.},
  title     = {The Holst action by the spectral action principle},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-60032},
  year      = {2012},
  abstract  = {We investigate the Holst action for closed Riemannian 4-manifolds with orthogonal connections. For connections whose torsion has zero Cartan type component we show that the Holst action can be recovered from the heat asymptotics for the natural Dirac operator acting on left-handed spinor fields.},
  language  = {en}
}
@unpublished{PfaeffleStephan2012,
  author    = {Pf{\"a}ffle, Frank and Stephan, Christoph A.},
  title     = {Chiral asymmetry and the spectral action},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-60046},
  year      = {2012},
  abstract  = {We consider orthogonal connections with arbitrary torsion on compact Riemannian manifolds. For the induced Dirac operators, twisted Dirac operators and Dirac operators of Chamseddine-Connes type we compute the spectral action. In addition to the Einstein-Hilbert action and the bosonic part of the Standard Model Lagrangian we find the Holst term from Loop Quantum Gravity, a coupling of the Holst term to the scalar curvature and a prediction for the value of the Barbero-Immirzi parameter.},
  language  = {en}
}
@article{BergholzHeymannSchenketal.1997,
  author    = {Bergholz, Andre and Heymann, Stephan and Schenk, J{\"o}rg A. and Freytag, Johann Christoph},
  title     = {Sequence comparison using a relational database approach},
  isbn      = {0-8186-8114-4},
  year      = {1997},
  language  = {en}
}
@article{BergholzHeymannSchenketal.2001,
  author    = {Bergholz, Andr{\´e} and Heymann, Stephan and Schenk, J{\"o}rg A. and Freytag, Johann Christoph},
  title     = {Biological sequences integrated: a relational database approach},
  year      = {2001},
  abstract  = {Over the last decade the modeling and the storage of biological data has been a topic of wide interest for scientists dealing with biological and biomedical research. Currently most data is still stored in text files which leads to data redundancies and file chaos. In this paper we show how to use relational modeling techniques and relational database technology for modeling and storing biological sequence data, i.e. for data maintained in collections like EMBL or SWISS-PROT to better serve the needs for these application domains. For this reason we propose a two step approach. First, we model the structure (and therefore the meaning of the) data using an Entity-Relationship approach. The ER model leads to a clean design of a relational database schema for storing and retrieving the DNA and protein data extracted from various sources. Our approach provides the clean basis for building complex biological applications that are more amenable to changes and software ports than their file-base counterparts.},
  language  = {en}
}
@book{RascheRehder2017,
  author    = {Rasche, Christoph and Rehder, Stephan A.},
  title     = {Internationales Management},
  series = {Kohlhammer executive education},
  journal   = {Kohlhammer executive education},
  editor    = {Wagner, Dieter and M{\"u}lller, Magnus and Madani, Roya},
  publisher = {Kohlhammer},
  address   = {Stuttgart},
  isbn      = {978-3-17-033399-4},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {101},
  year      = {2017},
  language  = {de}
}