Application of a hybrid method for systems of fractional order partial differential equations arising in the model of the one-dimensional Keller-Segel equationFazal Haq, Kamal Shah, Qasem M. Al-Mdallal and Fahd JaradEur. Phys. J. Plus, 134 9 (2019) 461DOI: https://doi.org/10.1140/epjp/i2019-12815-7