TY - JOUR AU - S. Ruan TI - On Nonlinear Dynamics of Predator-Prey Models with Discrete Delay JO - Mathematical modelling of natural phenomena PY - 2009 SP - 140 EP - 188 VL - 4 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20094207/ DO - 10.1051/mmnp/20094207 LA - en ID - MMNP_2009_4_2_a6 ER -