@article{Grytczuk:2009,
author
=
"A.Grytczuk and J.Grytczuk",
title
=
"Some Results Connected with the Class Number problem in Real Quadratic Fields",
journal
=
"Acta Mathematica Sinica, English Series",
volume
=
"Vol. 21",
number
=
"no 5",
pages
=
"1107--1112",
year
=
"2005",
}