@article{EschWoltersSalberetal.2001,
  author    = {Esch, Thomas and Wolters, P. and Salber, W. and Geiger, J.},
  title     = {Variable Ventilsteuerung und Direkteinspritzung - vom Wettbewerb zur Synergie},
  series = {Motor und Umwelt 2001, Internal Combustion Engine Versus Fuel Cell - Potential and Limitations as Automotive Power Sources, Verbrennungsmotor versus Brennstoffzelle - Potenziale und Grenzen f{\"u}r den Automobilantrieb, Proc., Graz, AT, 6.-7. Sep, 2001},
  journal   = {Motor und Umwelt 2001, Internal Combustion Engine Versus Fuel Cell - Potential and Limitations as Automotive Power Sources, Verbrennungsmotor versus Brennstoffzelle - Potenziale und Grenzen f{\"u}r den Automobilantrieb, Proc., Graz, AT, 6.-7. Sep, 2001},
  pages     = {183 -- 206},
  year      = {2001},
  language  = {de}
}
@article{EschSalberKemperetal.2001,
  author    = {Esch, Thomas and Salber, W. and Kemper, Hans and Staay, F. van der},
  title     = {Der elektromechanische Ventiltrieb - Systembaustein f{\"u}r zuk{\"u}nftige Antriebskonzepte, Teil 2.},
  series = {Motortechnische Zeitschrift (MTZ).},
  volume    = {62},
  journal   = {Motortechnische Zeitschrift (MTZ).},
  number    = {1},
  publisher = {Springer Nature},
  address   = {Basel},
  issn      = {0024-8525},
  doi       = {10.1007/bf03227081},
  pages     = {44 -- 55},
  year      = {2001},
  language  = {de}
}
@article{EschSalberKemperetal.2000,
  author    = {Esch, Thomas and Salber, W. and Kemper, Hans and Staay, F. van der},
  title     = {Der elektromechanische Ventiltrieb - Systembaustein f{\"u}r zuk{\"u}nftige Antriebskonzepte, Teil 1.},
  series = {Motortechnische Zeitschrift (MTZ).},
  volume    = {61},
  journal   = {Motortechnische Zeitschrift (MTZ).},
  number    = {12},
  publisher = {Springer Nature},
  address   = {Basel},
  issn      = {0024-8525},
  doi       = {10.1007/bf03227081},
  pages     = {826 -- 836},
  year      = {2000},
  language  = {de}
}
@article{EschPischingerHagenetal.1998,
  author    = {Esch, Thomas and Pischinger, M. and Hagen, J. and Salber, W.},
  title     = {M{\"o}glichkeiten der ottomotorischen Prozeßf{\"u}hrung bei Verwendung des elektromechanischen Ventiltriebs},
  pages     = {987 -- 1015},
  year      = {1998},
  language  = {de}
}