Search results for: A. S. Plyashechnik
Automation and Remote Control > 2019 > 80 > 3 > 490-501
Automation and Remote Control > 2019 > 80 > 1 > 124-137
Russian Journal of Mathematical Physics > 2013 > 20 > 3 > 377-379
Moscow University Mathematics Bulletin > 2010 > 65 > 6 > 223-228