@article{1077490474, author = {Bateman, H.}, title = {Spheroidal and bipolar coordinates}, journal = {Duke Math. J.}, volume = {4}, number = {1}, year = {1938}, pages = { 39-50}, language = {en}, url = {http://dml.mathdoc.fr/item/1077490474} }
Bateman, H. Spheroidal and bipolar coordinates. Duke Math. J., Tome 4 (1938) no. 1, pp. 39-50. http://gdmltest.u-ga.fr/item/1077490474/