TY - JOUR AU - M. M. Meredova TI - Completeness of eigenfunctions in the eigenvalue problem for a sixth-order equation of mixed-composite type JO - Differencialʹnye uravneniâ PY - 1984 SP - 2171 EP - 2173 VL - 20 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1984_20_12_a23/ LA - ru ID - DE_1984_20_12_a23 ER -