@article{1195514068,
author = {Morita, Shigeyuki},
title = {Casson's invariant for homology $3$-spheres and the mapping class group},
journal = {Proc. Japan Acad. Ser. A Math. Sci.},
volume = {62},
number = {6},
year = {1986},
pages = { 402-405},
language = {en},
url = {http://dml.mathdoc.fr/item/1195514068}
}
Morita, Shigeyuki. Casson's invariant for homology $3$-spheres and the mapping class group. Proc. Japan Acad. Ser. A Math. Sci., Tome 62 (1986) no. 6, pp. 402-405. http://gdmltest.u-ga.fr/item/1195514068/