@article{MET_1975__22_175691,
     author = {K.H. Loesgen},
     title = {Betriebs\"okonometrie  -  {Zschocke,D.}},
     journal = {Metrika},
     pages = {256--256},
     publisher = {mathdoc},
     volume = {22},
     year = {1975},
     url = {http://geodesic.mathdoc.fr/item/MET_1975__22_175691/}
}