A numerical investigation of the boundary layer flow of an Eyring-Powell fluid over a stretching sheet via rational Chebyshev functionsKourosh Parand, Mohammad Mahdi Moayeri, Sobhan Latifi and Mehdi DelkhoshEur. Phys. J. Plus, 132 7 (2017) 325DOI: https://doi.org/10.1140/epjp/i2017-11600-0