Note on the existence of periodic solutions of a second order differential equation

@article{F1969,
author = {F. H. Szafraniec},
journal = {Annales Polonici Mathematici},
keywords = {ordinary differential equations},
language = {eng},
number = {3},
pages = {305-307},
title = {Note on the existence of periodic solutions of a second order differential equation},
url = {http://eudml.org/doc/263482},
volume = {21},
year = {1969},
}

TY - JOUR
AU - F. H. Szafraniec
TI - Note on the existence of periodic solutions of a second order differential equation
JO - Annales Polonici Mathematici
PY - 1969
VL - 21
IS - 3
SP - 305
EP - 307
LA - eng
KW - ordinary differential equations
UR - http://eudml.org/doc/263482
ER -