TY  - JOUR
AU  - B. I. Zhilinskii
AU  - N. F. Stepanov
TI  - Minimization of the energy functional on a special class of unitary operators
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1973
SP  - 146
EP  - 150
VL  - 15
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1973_15_1_a13/
LA  - ru
ID  - TMF_1973_15_1_a13
ER  -