@article{MM2_1991__71_3_155601,
     author = {Laszlo Fuchs and Claudia Metelli},
     title = {On a class of {Butler} groups.},
     journal = {Manuscripta mathematica},
     pages = {1--28},
     publisher = {mathdoc},
     volume = {71},
     number = {3},
     year = {1991},
     zbl = {0765.20026},
     url = {http://geodesic.mathdoc.fr/item/MM2_1991__71_3_155601/}
}