@article{01343546,
title = {On existence of solutions to the periodic boundary value problem for a nonlinear system of generalized ordinary differential equations.},
journal = {Memoirs on Differential Equations and Mathematical Physics},
volume = {17},
year = {1999},
pages = {150-153},
zbl = {0934.34010},
language = {en},
url = {http://dml.mathdoc.fr/item/01343546}
}
Ashordia, M. On existence of solutions to the periodic boundary value problem for a nonlinear system of generalized ordinary differential equations.. Memoirs on Differential Equations and Mathematical Physics, Tome 17 (1999) pp. 150-153. http://gdmltest.u-ga.fr/item/01343546/