@article{1183532405, author = {Goldstein, Myron}, title = {The $K$-span of a Riemann surface}, journal = {Bull. Amer. Math. Soc.}, volume = {76}, number = {4}, year = {1970}, pages = { 1286-1287}, language = {en}, url = {http://dml.mathdoc.fr/item/1183532405} }
Goldstein, Myron. The $K$-span of a Riemann surface. Bull. Amer. Math. Soc., Tome 76 (1970) no. 4, pp. 1286-1287. http://gdmltest.u-ga.fr/item/1183532405/