@article{1178243809, author = {Sagawa, Akira}, title = {On the existence of harmonic functions on a Riemann surface}, journal = {Tohoku Math. J. (2)}, volume = {15}, number = {4}, year = {1963}, pages = { 265-272}, language = {en}, url = {http://dml.mathdoc.fr/item/1178243809} }
Sagawa, Akira. On the existence of harmonic functions on a Riemann surface. Tohoku Math. J. (2), Tome 15 (1963) no. 4, pp. 265-272. http://gdmltest.u-ga.fr/item/1178243809/