@article{GDZPPN002269325,
title = {On a formula of transformation.},
journal = {Mathematische Annalen},
volume = {90},
year = {1923},
pages = {157-159},
zbl = {49.0718.01},
url = {http://dml.mathdoc.fr/item/GDZPPN002269325}
}
Upadhyaya, P.O. On a formula of transformation.. Mathematische Annalen, Tome 90 (1923) pp. 157-159. http://gdmltest.u-ga.fr/item/GDZPPN002269325/