00434nam a2200133Ia 4500020001500000082002000015100004400035245006200079260003400141300002100175490006400196500000500260700003500265  a3540171886  a338.54bG114.BC  aGabisch, Gunter and Loranz, Hans-Walter  aBusiness cycle theory; a survey of methods and conceptsb  aBerlinbSpringer-Verlagc1987  avii, 229p. Index  aLecture notes in Economics and Mathematical systemsv v.283  a  aLoranz, Hans-Walter ; jt. auth