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