TY - JOUR AU - D.I. Borisov TI - The Emergence of Eigenvalues of a $\mathcal{PT}$-Symmetric Operator in a Thin Strip JO - Matematičeskie zametki PY - 2015 SP - 809 EP - 823 VL - 98 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2015_98_6_a1/ LA - ru ID - MZM_2015_98_6_a1 ER -