@article{Grabiec:2009,
author
=
"B.Grabiec and M.Matlak",
title
=
"Extended Hubbard model in the dimer representation. I. Dimer Hamiltonian in the large U limit",
journal
=
"Acta Physica Polonica A",
volume
=
"Vol. 101",
number
=
"no 4",
pages
=
"537--548",
year
=
"2002",
}