@article{RCM_1977__11_181665,
     author = {Michael A. Klembara and Donald B. Parker},
     title = {Intersections of normally contained fitting classes},
     journal = {Revista colombiana de matematicas},
     pages = {113--120},
     publisher = {mathdoc},
     volume = {11},
     year = {1977},
     zbl = {0409.20018},
     url = {http://geodesic.mathdoc.fr/item/RCM_1977__11_181665/}
}