TY - JOUR AU - Freedman, H. I. AU - Gopalsamy, K. TI - Nonoccurence of Stability Switching in Systems with Discrete Delays JO - Canadian mathematical bulletin PY - 1988 SP - 52 EP - 58 VL - 31 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-008-0/ DO - 10.4153/CMB-1988-008-0 ID - 10_4153_CMB_1988_008_0 ER -