@article{ASUO_2001_IX_2_a14,
     author = {K. W. Roggenkamp},
     title = {Group rings, {Hecke} orders, quasi-hereditary orders, cellular
                            orders and deformations},
     journal = {Analele Universit\u{a}\c{t}ii "Ovidius" Constan\c{t}a Seria Matematic\u{a}},
     publisher = {mathdoc},
     volume = {IX},
     number = {2},
     year = {2001},
     url = {http://geodesic.mathdoc.fr/item/ASUO_2001_IX_2_a14/}
}