@article{paperid:1079896, author = {Rakhshan, Seyed Ali and Effati, Sohrab}, title = {Fractional optimal control problems with time-varying delay: A new delay fractional Euler–Lagrange equations}, journal = {Journal of the Franklin Institute}, year = {2020}, volume = {357}, number = {10}, month = {April}, issn = {0016-0032}, pages = {5954--5988}, numpages = {34}, keywords = {Fractional optimal control problems;delay fractional Euler–Lagrange equations}, }