TY - JOUR TI - Lev Lerman and Albert Morozov. On the Occasion of Their 80th Birthday JO - Russian journal of nonlinear dynamics PY - 2025 SP - 3 EP - 4 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ND_2025_21_1_a0/ LA - en ID - ND_2025_21_1_a0 ER -