TY  - BOOK
AU  - Մկրտչյան,Ռուբեն Լևոնի
AU  - Khudaverdyan,O.M.
ED  - Yerevan Physics Institute
TI  - Integral Invariants of Butten՚s Bracket
T2  - ЕФИ-918(69)-86
PY  - 1986///
CY  - Yerevan
PB  - Yerevan Physics Institute
KW  - Physics
ER  -