TY - JOUR AU - A. V. Astrelin TI - An estimate for the degree of irreducible eigenpolynomials of a differential operator of a certain type JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 1990 SP - 75 EP - 77 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_1990_5_a17/ LA - ru ID - VMUMM_1990_5_a17 ER -