Journal or Book Title
Houston Journal of Mathematics
Let V be a congruence modular variety satisfying (C2) whose two generated free algebra is finite. If V has AP and RS then V has (R). Here (C2) and (R) are two properties defined in terms of the commutator in modular varieties.
Houston Journal of Mathematics (HJM)
Bergman, Clifford, "Another Consequence of AP in Residually Small, Congruence Modular Varieties" (1988). Mathematics Publications. 7.