@article{ZNSL_1974_48_a4,
     author = {N. B. Malyshev and T. N. Smirnova},
     title = {Automatic analysis of problem programs},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {23--31},
     year = {1974},
     volume = {48},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1974_48_a4/}
}