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@article{MZ_1979__167_172836, author = {Elspeth Cusack}, title = {The {Join} of {Two} {Fitting} {Classes.}}, journal = {Mathematische Zeitschrift}, pages = {37--48}, publisher = {mathdoc}, volume = {167}, year = {1979}, zbl = {0387.20016}, url = {http://geodesic.mathdoc.fr/item/MZ_1979__167_172836/} }
Elspeth Cusack. The Join of Two Fitting Classes.. Mathematische Zeitschrift, Tome 167 (1979), pp. 37-48. http://geodesic.mathdoc.fr/item/MZ_1979__167_172836/