@article{GDZPPN002486733, title = {Closure Properties for Fitting Functors.}, journal = {Monatshefte f\"ur Mathematik}, volume = {108}, year = {1989}, pages = {1-22}, zbl = {0679.20016}, url = {http://dml.mathdoc.fr/item/GDZPPN002486733} }
Beidleman, James C.; Hauck, Peter. Closure Properties for Fitting Functors.. Monatshefte für Mathematik, Tome 108 (1989) pp. 1-22. http://gdmltest.u-ga.fr/item/GDZPPN002486733/