@article{1183502556,
author = {O'Brien, Katharine E.},
title = {Some problems in interpolation by characteristic functions of linear differential systems of the fourth order},
journal = {Bull. Amer. Math. Soc.},
volume = {46},
number = {11},
year = {1940},
pages = { 281-290},
language = {en},
url = {http://dml.mathdoc.fr/item/1183502556}
}
O'Brien, Katharine E. Some problems in interpolation by characteristic functions of linear differential systems of the fourth order. Bull. Amer. Math. Soc., Tome 46 (1940) no. 11, pp. 281-290. http://gdmltest.u-ga.fr/item/1183502556/