@Article{ authors = " Karol Szałowski, Tadeusz Balcerzak, Michal Jaščur, Andrej Babák, Milan Žukovič", title = "Thermodynamic Properties of a Hubbard Model on a Cubic Cluster - Exact Diagonalization Study at Quarter Filling ", journal = "Bulletin de la Société des Science et des Lettres de Łódź. Serie: Recherches sur les Déformations", issue = "2016 / Tom 66 / Numer 1", pages = "17 - 28" }