@article{10_4153_CJM_1975_074_0,
     author = {Kelly, David and Rival, Ivan},
     title = {Planar {Lattices}},
     journal = {Canadian journal of mathematics},
     pages = {636--665},
     year = {1975},
     volume = {27},
     number = {3},
     doi = {10.4153/CJM-1975-074-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-074-0/}
}