@article{ISU_2007_7_1_a15,
     author = {A. S. Ivanov},
     title = {One model for representation of production knowledge base},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {83--88},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2007_7_1_a15/}
}