TY - JOUR AU - Ya. M. Dymarskii AU - D. N. Nepiypa TI - A quasilinear method in the theory of small eigenfunctions for nonlinear periodic boundary-value problems JO - Contemporary Mathematics. Fundamental Directions PY - 2010 SP - 72 EP - 86 VL - 36 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMFD_2010_36_a6/ LA - ru ID - CMFD_2010_36_a6 ER -