@article{LepersRakePuetter2005,
  author    = {Heinrich Lepers and H. Rake and L. P{\"u}tter},
  title     = {Regelung der Qualitaet beim Brennen von Zementklinker},
  journal   = {Regelungstechnische Praxis : rtp},
  volume    = {18},
  number    = {4},
  pages     = {87 -- 91},
  year      = {2005},
}