@article{Kisielewicz:2009,
author
=
"M.Kisielewicz",
title
=
"On the existence of solutions of differential integral equations with a lagging argument",
journal
=
"Annales Societatis Mathematicae Polonae : Commentationes Mathematicae : Series I",
volume
=
"Vol. 13",
pages
=
"255--266",
year
=
"1970",
}