@article{1103036141,
author = {Posner, Edward C.},
title = {Integral closure of rings of solutions of linear differential equations.},
journal = {Pacific J. Math.},
volume = {12},
number = {4},
year = {1962},
pages = { 1417-1422},
language = {en},
url = {http://dml.mathdoc.fr/item/1103036141}
}
Posner, Edward C. Integral closure of rings of solutions of linear differential equations.. Pacific J. Math., Tome 12 (1962) no. 4, pp. 1417-1422. http://gdmltest.u-ga.fr/item/1103036141/