TY - JOUR AU - Ohriska, Ján TI - On a certain differential equation with time lag JO - Archivum mathematicum PY - 1971 SP - 77 EP - 86 VL - 07 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1971__7_2_a2/ LA - en ID - ARM_1971__7_2_a2 ER -