@article{10_4153_CJM_1981_099_2,
     author = {Reilly, Norman R.},
     title = {A {Subsemilattice} of the {Lattice} of {Varieties} of {Lattice} {Ordered} {Groups}},
     journal = {Canadian journal of mathematics},
     pages = {1309--1318},
     year = {1981},
     volume = {33},
     number = {6},
     doi = {10.4153/CJM-1981-099-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-099-2/}
}