@article{Więckowski:2009,
author
=
"A.Więckowski",
title
=
"On some systems of Diophantine equations including the algebraic sum of triangular numbers",
journal
=
"Fibonacci Quarterly",
volume
=
"Vol. 18",
number
=
"no 2",
pages
=
"165--170",
year
=
"1980",
}