A new fractional nonlocal model and its application in free vibration of Timoshenko and Euler-Bernoulli beamsZaher Rahimi, Wojciech Sumelka and Xiao-Jun YangEur. Phys. J. Plus, 132 11 (2017) 479DOI: https://doi.org/10.1140/epjp/i2017-11751-x