@article{KUIPM_1980_a12,
     author = {N. K. Zamov and N. I. Zvyagina and R. K. Samitov},
     title = {Design principles of the computer-aided instruction system {GAMMA}},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {85--88},
     publisher = {mathdoc},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1980_a12/}
}