@article{1183503906, author = {Reade, Maxwell and Beckenbach, E. F.}, title = {Mean-value surfaces}, journal = {Bull. Amer. Math. Soc.}, volume = {47}, number = {11}, year = {1941}, pages = { 808-815}, language = {en}, url = {http://dml.mathdoc.fr/item/1183503906} }
Reade, Maxwell; Beckenbach, E. F. Mean-value surfaces. Bull. Amer. Math. Soc., Tome 47 (1941) no. 11, pp. 808-815. http://gdmltest.u-ga.fr/item/1183503906/