@article{1077493221,
author = {Newell, Jr., Homer E.},
title = {The asymptotic forms of the solutions of an ordinary linear
matric differential equation in the complex domain},
journal = {Duke Math. J.},
volume = {9},
number = {1},
year = {1942},
pages = { 245-258},
language = {en},
url = {http://dml.mathdoc.fr/item/1077493221}
}
Newell, Jr., Homer E. The asymptotic forms of the solutions of an ordinary linear
matric differential equation in the complex domain. Duke Math. J., Tome 9 (1942) no. 1, pp. 245-258. http://gdmltest.u-ga.fr/item/1077493221/