TY - JOUR AU - N. Lažetić TI - Estimates of the eigenfunctions and associated functions of a Sturm--Liouville operator with discontinuous coefficients JO - Doklady Akademii Nauk PY - 1981 SP - 541 EP - 544 VL - 258 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1981_258_3_a5/ LA - ru ID - DAN_1981_258_3_a5 ER -