%0 Journal Article %A Cogswell, Kurt D. %T A Multiparameter, Zero Density Subsequence Ergodic Theorem %J Canadian mathematical bulletin %D 1993 %P 33-37 %V 36 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1993-006-5/ %R 10.4153/CMB-1993-006-5 %F 10_4153_CMB_1993_006_5