TY - JOUR AU - Kopáčková, Marie TI - On periodic solutions of some equations of mathematical physics JO - Applications of Mathematics PY - 1973 SP - 33 EP - 42 VL - 18 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1973.103446/ DO - 10.21136/AM.1973.103446 LA - en ID - 10_21136_AM_1973_103446 ER -