@article{PORMA_1996__53_2_47591,
     author = {Singh, Surjeet and Hanna, L.A.-M.},
     title = {Separable group-ring extensions.},
     journal = {Portugaliae mathematica},
     pages = {157--165},
     publisher = {mathdoc},
     volume = {53},
     number = {2},
     year = {1996},
     zbl = {0857.16024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1996__53_2_47591/}
}