Title of article :
Periodic solutions for a Lotka–Volterra mutualism system with several delays
Author/Authors :
Yonghui Xia، نويسنده , , Jinde Cao and Sui Sun Cheng، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Keywords :
Mutualism model , Periodic Solutions , coincidence degree
Journal title :
Applied Mathematical Modelling
Journal title :
Applied Mathematical Modelling