@article{10_21136_CMJ_1978_101554,
     author = {Jakub{\'\i}k, J\'an},
     title = {Orthogonal hull of a strongly projectable lattice ordered group},
     journal = {Czechoslovak Mathematical Journal},
     pages = {484--504},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1978},
     doi = {10.21136/CMJ.1978.101554},
     mrnumber = {0505957},
     zbl = {0391.06014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1978.101554/}
}