@article{10_4153_CJM_1975_034_5,
     author = {Gr\"atzer, G. and Sichler, J.},
     title = {Free {Decompositions} of a {Lattice}},
     journal = {Canadian journal of mathematics},
     pages = {276--285},
     year = {1975},
     volume = {27},
     number = {2},
     doi = {10.4153/CJM-1975-034-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-034-5/}
}