TY - JOUR AU - Jan Čermák TI - On the delay differential equation y'(x) = ay(τ(x)) + by(x) JO - Annales Polonici Mathematici PY - 1999 SP - 161 EP - 169 VL - 71 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-71-2-161-169/ DO - 10.4064/ap-71-2-161-169 LA - en ID - 10_4064_ap_71_2_161_169 ER -