01025nam2-2200349---450-99000333109020331620091012104028.00-691-02532-0000333109USA01000333109(ALEPH)000333109USA0100033310920091012d1992----km-y0itay50------baengUSy---||||001yy<<An>> extension of Casson's invariantKevin WalkerPrincentonPrincenton university presscopyr. 1992100 p.24 cmAnnals of mathematics studies1260010003153552001Annals of mathematics studies126Topologia514.3WALKER,Kevin350732ITsalbcISBD990003331090203316510 AMSP 12637884/CBS51000218091BKSCIRSIAV69020091012USA011040Extension of Casson's invariant375848UNISA