TY - JOUR AU - Beazer, R. TI - Some p-algebras and double p-algebras having only principal congruences JO - Glasgow mathematical journal PY - 1992 SP - 157 EP - 164 VL - 34 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008673/ DO - 10.1017/S0017089500008673 ID - 10_1017_S0017089500008673 ER -