TY  - JOUR
AU  - E. V. Damaskinsky
TI  - Invariant Weyl systems that are not $U$-cyclic (note on Hegerfeldt and Melsheimer's paper)
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1973
SP  - 221
EP  - 226
VL  - 15
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1973_15_2_a4/
LA  - ru
ID  - TMF_1973_15_2_a4
ER  -