@article{ZieglerSpindler1993,
  author    = {Ziegler, Felix and Spindler, Uli},
  title     = {An ammonia refrigerator with an absorption circuit as economizer},
  journal   = {International Journal of Refrigeration},
  number    = {7/93},
  institution = {Fakult{\"a}t f{\"u}r Angewandte Natur- und Geisteswissenschaften},
  pages     = {230 -- 239},
  year      = {1993},
  language  = {en}
}