00787nam0-22002531i-450-990001301170403321000130117FED01000130117(Aleph)000130117FED0100013011720000920d1985----km-y0itay50------baengClassifying immersions into R4 over stable maps of 3-manifolds into R2by LEVINE H.Berlin [etc.]Springer-Verlag1985Lecture Notes in Mathematics1157Levine,Harold59058ITUNINARICAUNIMARCBK990001301170403321C-20-(11571734MA1MA1Classifying immersions into R4 over stable maps of 3-manifolds into R2383409UNINAING01