@article{paperid:1035096, author = {Hossein Gholizade-Narma and Asad Azemi B and Khademi, Morteza}, title = {Phase synchronization and synchronization frequency of two-coupled van der Pol oscillators with delayed coupling}, journal = {Chinese Physics B}, year = {2013}, volume = {22}, number = {7}, month = {July}, issn = {1674-1056}, pages = {70502--5}, numpages = {-70497}, keywords = {van der Pol oscillator; delay coupling; phase synchronization; synchronization frequency}, }