TY - JOUR AU - Ohtsuki, Tomotada TI - A polynomial invariant of rational homology 3-spheres. JO - Inventiones mathematicae PY - 1996 VL - 123 IS - 2 SP - 241 EP - 258 KW - Casson-Walker invariant; 3-manifold; rational homology 3-sphere UR - http://eudml.org/doc/144344 ER -