TY - JOUR AU - M. D. Lysak TI - Precise estimates of the walk speed of solutions of second-order linear systems JO - Trudy Seminara im. I.G. Petrovskogo PY - 2014 SP - 184 EP - 212 VL - 30 IS - 30 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TSP_2014_30_30_a10/ LA - ru ID - TSP_2014_30_30_a10 ER -