TY  - JOUR
AU  - A. E. Irisov
AU  - E. L. Tonkov
TI  - Sufficient conditions for optimality of Birkhoff recurrent motions for differential inclusion
JO  - Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki
PY  - 2005
SP  - 59
EP  - 74
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VUU_2005_1_a3/
LA  - ru
ID  - VUU_2005_1_a3
ER  -