@article{JRAM_1966__224_150765,
     author = {Azmi Hanna},
     title = {Dualit\"at in {Moduln.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {113--117},
     publisher = {mathdoc},
     volume = {224},
     year = {1966},
     zbl = {0173.03202},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1966__224_150765/}
}