@article{1250520070, author = {Ishida, Hisashi}, title = {Weakly exact differentials on open Riemann surfaces}, journal = {J. Math. Kyoto Univ.}, volume = {30}, number = {4}, year = {1990}, pages = { 235-243}, language = {en}, url = {http://dml.mathdoc.fr/item/1250520070} }
Ishida, Hisashi. Weakly exact differentials on open Riemann surfaces. J. Math. Kyoto Univ., Tome 30 (1990) no. 4, pp. 235-243. http://gdmltest.u-ga.fr/item/1250520070/