@article{MZ_1922__13_167695, author = {E. T. Bell}, title = {Arithmetical equivalents for a remarkable identity between theta functions . . . . . . . . . . . . . . .}, journal = {Mathematische Zeitschrift}, pages = {146--152}, year = {1922}, volume = {13}, zbl = {48.1167.01}, url = {http://geodesic.mathdoc.fr/item/MZ_1922__13_167695/} }