%0 Journal Article %A Deveney, James K. %A Mordeson, John N. %T Subfields and Invariants of Inseparable Field Extensions %J Canadian journal of mathematics %D 1977 %P 1304-1311 %V 29 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-131-4/ %R 10.4153/CJM-1977-131-4 %F 10_4153_CJM_1977_131_4