TY - JOUR AU - Yu. P. Leonov TI - Dynamical systems that are observable in experiments JO - Doklady Akademii Nauk PY - 1973 SP - 562 EP - 565 VL - 208 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1973_208_3_a17/ LA - ru ID - DAN_1973_208_3_a17 ER -