TY  - JOUR
AU  - A. K. Kel'mans
TI  - The existence of a “most complex” problem in the class of
JO  - Doklady Akademii Nauk
PY  - 1985
SP  - 1299
EP  - 1303
VL  - 282
IS  - 6
UR  - http://geodesic.mathdoc.fr/item/DAN_1985_282_6_a2/
LA  - ru
ID  - DAN_1985_282_6_a2
ER  -