@article{1227108445,
author = {OKADA, Masae},
title = {Delta-unknotting operation and the second coefficient of the Conway polynomial},
journal = {J. Math. Soc. Japan},
volume = {42},
number = {4},
year = {1990},
pages = { 713-717},
language = {en},
url = {http://dml.mathdoc.fr/item/1227108445}
}
OKADA, Masae. Delta-unknotting operation and the second coefficient of the Conway polynomial. J. Math. Soc. Japan, Tome 42 (1990) no. 4, pp. 713-717. http://gdmltest.u-ga.fr/item/1227108445/