@article{1183419651,
author = {Noble, C. A.},
title = {Singular points of a simple kind of differential equation of the second order},
journal = {Bull. Amer. Math. Soc.},
volume = {15},
number = {3},
year = {1908},
pages = { 223-229},
language = {en},
url = {http://dml.mathdoc.fr/item/1183419651}
}
Noble, C. A. Singular points of a simple kind of differential equation of the second order. Bull. Amer. Math. Soc., Tome 15 (1908) no. 3, pp. 223-229. http://gdmltest.u-ga.fr/item/1183419651/