@misc{10_4153_CJM_1982_028_6,
     title = {Pseudocomplemented and {Implicative} {Semilattices}},
     journal = {Canadian journal of mathematics},
     pages = {423--437},
     year = {1982},
     volume = {34},
     number = {2},
     doi = {10.4153/CJM-1982-028-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1982-028-6/}
}