@article{PIM_2012_N_S_92_106_a7,
     author = {Anthony M. Gaglione and Seymour Lipschutz and Dennis Spellman},
     title = {Note on a {Question} of {Reinhold} {Baer} on {Pregroups} {II}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {109 },
     publisher = {mathdoc},
     volume = {_N_S_92},
     number = {106},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2012_N_S_92_106_a7/}
}