@article{EUG_1991_29_a5,
     author = {Alain Bouvier and  Muhammad Zafrullah},
     title = {On some class groups of an integral domain},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {45--59},
     year = {1991},
     volume = {29},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1991_29_a5/}
}