@article{GDZPPN002421771, title = {Shape Invariant Functors: Application in Module-Theory.}, journal = {Mathematische Zeitschrift}, volume = {162}, year = {1978}, pages = {179-184}, zbl = {0392.18010}, url = {http://dml.mathdoc.fr/item/GDZPPN002421771} }
Frei, Armin; Kleisli, Heinrich. Shape Invariant Functors: Application in Module-Theory.. Mathematische Zeitschrift, Tome 162 (1978) pp. 179-184. http://gdmltest.u-ga.fr/item/GDZPPN002421771/