TY  - JOUR
AU  - V. P. Palamodov
TI  - Singularities of the solutions of strictly hyperbolic equations and the problem of quasar twins in astronomy
JO  - Doklady Akademii Nauk
PY  - 1981
SP  - 849
EP  - 852
VL  - 257
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1981_257_4_a18/
LA  - ru
ID  - DAN_1981_257_4_a18
ER  -