@article{MZ_1974__137_172062,
     author = {F. Peter Lockett},
     title = {The {Fitting} {Clas} ...*.},
     journal = {Mathematische Zeitschrift},
     pages = {131--136},
     year = {1974},
     volume = {137},
     zbl = {0286.20017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__137_172062/}
}