%0 Journal Article %A Clay, James R. %A Lawver, Donald A. %T Boolean Near-Rings %J Canadian mathematical bulletin %D 1969 %P 265-273 %V 12 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-033-7/ %R 10.4153/CMB-1969-033-7 %F 10_4153_CMB_1969_033_7