Para cita:
Vasilyev I.A. . The Education and science journal. 2013;(9):103-120. (In Russ.) https://doi.org/10.17853/1994-5639-2013-9-103-120
Vasilyev I.A. . The Education and science journal. 2013;(9):103-120. (In Russ.) https://doi.org/10.17853/1994-5639-2013-9-103-120