@article{FoersterLachenmannFriedrich1997,
  author    = {F{\"o}rster, Arnold and Lachenmann, S. G. and Friedrich, I.},
  title     = {Charge transport in superconductor/semiconductor/normal-conductor step junctions / S. G. Lachenmann ; I. Friedrich ; A. F{\"o}rster ...},
  series = {Physical review / B, Condensed matter and materials physics. 56 (1997), H. 21},
  journal   = {Physical review / B, Condensed matter and materials physics. 56 (1997), H. 21},
  isbn      = {1095-3795},
  pages     = {14108 -- 14115},
  year      = {1997},
  language  = {en}
}
@article{FoersterLachenmannFriedrichetal.1999,
  author    = {F{\"o}rster, Arnold and Lachenmann, S. G. and Friedrich, I. and Uhlisch, D.},
  title     = {Superconductor/semiconductor step junctions: the basic element for hybrid three terminal devices. Lachenmann, S. G., F{\"o}rster, A.; Friedrich, I.; Uhlisch, D.; Sch{\"a}pers, Th.; Kastalsky, A.; Golubov, A. A.},
  series = {Applied Superconductivity. 6 (1999), H. 10-12},
  journal   = {Applied Superconductivity. 6 (1999), H. 10-12},
  isbn      = {0964-1807},
  pages     = {681 -- 688},
  year      = {1999},
  language  = {en}
}