@article{DMGAA_2007_27_1_a7,
     author = {Kravchenko, Aleksandr},
     title = {Lattices of relative colour-families and antivarieties},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {123--139},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2007_27_1_a7/}
}