TY - JOUR AU - L. D. Pustyl'nikov TI - On the spectrum of the discrete inhomogeneous wave equation, and vibrations of a discrete string JO - Sbornik. Mathematics PY - 1993 SP - 317 EP - 331 VL - 75 IS - 2 UR - http://geodesic.mathdoc.fr/item/SM_1993_75_2_a1/ LA - en ID - SM_1993_75_2_a1 ER -