%0 Journal Article %A Shrikhande, S. S. %A Raghavarao, D. %A Tharthare, S. K. %T Non-Existence of Some Unsymmetrical Partially Balanced Incomplete Block Designs: Corrigendum %J Canadian journal of mathematics %D 1970 %P 191-191 %V 22 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-023-4/ %R 10.4153/CJM-1970-023-4 %F 10_4153_CJM_1970_023_4