@article{1183499881, author = {Langer, Rudolph E.}, title = {Ford on Asymptotic Developments}, journal = {Bull. Amer. Math. Soc.}, volume = {43}, number = {12}, year = {1937}, pages = { 452-454}, language = {en}, url = {http://dml.mathdoc.fr/item/1183499881} }
Langer, Rudolph E. Ford on Asymptotic Developments. Bull. Amer. Math. Soc., Tome 43 (1937) no. 12, pp. 452-454. http://gdmltest.u-ga.fr/item/1183499881/