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@article{KUIPM_1977_a5, author = {R. N. Abaidullin}, title = {Operating system {SIGMA:} {Principles} of system organization}, journal = {Issledovaniya po Prikladnoi Matematike i Informatike}, pages = {35--39}, publisher = {mathdoc}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUIPM_1977_a5/} }
R. N. Abaidullin. Operating system SIGMA: Principles of system organization. Issledovaniya po Prikladnoi Matematike i Informatike, Issledovaniya po Prikladnoi Matematike (1977), pp. 35-39. http://geodesic.mathdoc.fr/item/KUIPM_1977_a5/