TY - JOUR AU - S. K. Tleukenov TI - Disposition of the dispersion equation roots for a wave guide being periodical and inhomogeneous with the depth JO - Zapiski Nauchnykh Seminarov POMI PY - 1988 SP - 167 EP - 171 VL - 173 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1988_173_a16/ LA - ru ID - ZNSL_1988_173_a16 ER -