00924nam0-22003251i-450-9900013315404033210-691-08766-0000133154FED01000133154(Aleph)000133154FED01000133154--------d--------km-y0itay50------baeng<<An >>extension of Casson's invariantKevin Walker.Princeton [N.J.]Princeton University Press1992.vii, 131 p.24 cmAnnals of mathematics studies126Varieta e complessi cellulariInvarianti di casson514.3Walker,Kevin350732ITUNINARICAUNIMARCBK990001331540403321C-11-(12611079MA1MA157N1011F20Extension of Casson's invariant375848UNINA