@article{1103040098,
author = {Hellman, Olavi},
title = {On the periodicity of the solution of a certain nonlinear integral equation.},
journal = {Pacific J. Math.},
volume = {8},
number = {4},
year = {1958},
pages = { 219-226},
language = {en},
url = {http://dml.mathdoc.fr/item/1103040098}
}
Hellman, Olavi. On the periodicity of the solution of a certain nonlinear integral equation.. Pacific J. Math., Tome 8 (1958) no. 4, pp. 219-226. http://gdmltest.u-ga.fr/item/1103040098/