@article{GDZPPN002067463, title = {Casson invariant of links of singularities.}, journal = {Commentarii mathematici Helvetici}, volume = {65}, year = {1990}, pages = {58-78}, zbl = {0704.57007}, url = {http://dml.mathdoc.fr/item/GDZPPN002067463} }
Neumann, Walter; Wahl, Jonathan. Casson invariant of links of singularities.. Commentarii mathematici Helvetici, Tome 65 (1990) pp. 58-78. http://gdmltest.u-ga.fr/item/GDZPPN002067463/