@article{DMGAA_2009_29_2_a6,
     author = {Knyazhansky, Marina and Plotkin, Tatjana},
     title = {Knowledge bases and automorphic equivalence of multi-models versus linear spaces and graphs},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {203--213},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2009_29_2_a6/}
}