@article{IlievKaishevaSchelleretal.1995,
  author    = {Iliev, I. and Kaisheva, A. and Scheller, Frieder W. and Pfeiffer, Dorothea},
  title     = {Amperometric gas-diffusion / enzyme electrode},
  year      = {1995},
  language  = {en}
}
@article{KaishevaIlievKazarevaetal.1996,
  author    = {Kaisheva, A. and Iliev, I. and Kazareva, R. and Christov, S. and Wollenberger, Ursula and Scheller, Frieder W.},
  title     = {Enzyme/gas diffusion electrodes for determination of phenol},
  year      = {1996},
  language  = {en}
}