https://vital.lib.tsu.ru/vital/access/manager/Index en-us 5 Lagrange anchor and characteristic symmetries of free massless fields https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000431702 Mon 17 Dec 2018 12:51:08 KRAT ]]> Consistent interactions and involution https://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000452939 Mon 17 Dec 2018 11:34:05 KRAT ]]>