@article{DM_2008_20_1_a11,
     author = {E. V. Kostylev and V. A. Zakharov},
     title = {On complexity of the anti-unification problem},
     journal = {Diskretnaya Matematika},
     pages = {131--144},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2008_20_1_a11/}
}