Principal congruences of pseudocomplemented semilattices and congruence extension property
1979 ◽
Vol 73
(3)
◽
pp. 308-308
◽
1999 ◽
Vol 27
(11)
◽
pp. 5439-5461
◽
1972 ◽
Vol 35
(1)
◽
pp. 63-63
1985 ◽
Vol 32
(1)
◽
pp. 45-53
◽