@article{DM_1991_3_3_a1,
     author = {A. S. Podkolzin},
     title = {On the organization of knowledge bases in view of automatic problem solving},
     journal = {Diskretnaya Matematika},
     pages = {13--30},
     publisher = {mathdoc},
     volume = {3},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1991_3_3_a1/}
}