@article{GDZPPN002432234, title = {Combinations of Distinguished Subsets and Conullity.}, journal = {Mathematische Zeitschrift}, volume = {192}, year = {1986}, pages = {447-452}, zbl = {0627.46006}, url = {http://dml.mathdoc.fr/item/GDZPPN002432234} }
DeVos, Robert. Combinations of Distinguished Subsets and Conullity.. Mathematische Zeitschrift, Tome 192 (1986) pp. 447-452. http://gdmltest.u-ga.fr/item/GDZPPN002432234/