@article{1200783642, author = {Sankaran, G. K.}, title = {Remarks on open surfaces}, journal = {Osaka J. Math.}, volume = {29}, number = {1}, year = {1992}, pages = { 63-70}, language = {en}, url = {http://dml.mathdoc.fr/item/1200783642} }
Sankaran, G. K. Remarks on open surfaces. Osaka J. Math., Tome 29 (1992) no. 1, pp. 63-70. http://gdmltest.u-ga.fr/item/1200783642/