TY - JOUR AU - Naumann, Joachim TI - Periodic solutions to certain evolution inequalities JO - Czechoslovak Mathematical Journal PY - 1977 SP - 424 EP - 433 VL - 27 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1977.101479/ DO - 10.21136/CMJ.1977.101479 LA - en ID - 10_21136_CMJ_1977_101479 ER -