@article{10_4153_CJM_1980_089_0,
     author = {Adams, M. E. and Sichler, J.},
     title = {Cover {Set} {Lattices}},
     journal = {Canadian journal of mathematics},
     pages = {1177--1205},
     year = {1980},
     volume = {32},
     number = {5},
     doi = {10.4153/CJM-1980-089-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-089-0/}
}