@article{KeesNicolai1997,
  author    = {A. Kees and H. Nicolai},
  title     = {Was kostet eine PPS-Systemumstellung, Teil 2},
  series   = {Technica},
  volume    = {46},
  number    = {21},
  issn      = {0040-0866},
  pages     = {24 -- 28},
  year      = {1997},
  language  = {de}
}