TY - JOUR AU - Z. I. Leibenzon TI - Algebraic-differential transformations of linear differential operators of arbitrary order and their spectral properties applicable to the inverse problem. I. The case of finite $\mathfrak N$ JO - Sbornik. Mathematics PY - 1972 SP - 408 EP - 428 VL - 16 IS - 3 UR - http://geodesic.mathdoc.fr/item/SM_1972_16_3_a6/ LA - en ID - SM_1972_16_3_a6 ER -