@article{paperid:1067332, author = {Razaghian, Hamid and Garousi, Mohammad Reza}, title = {T-duality invariant effective actions at orders α ′ , α ′ 2}, journal = {Journal of High Energy Physics}, year = {2018}, volume = {2}, number = {56}, month = {February}, issn = {1029-8479}, pages = {1--24}, numpages = {23}, keywords = {String Duality; Bosonic Strings; Superstrings and Heterotic Strings}, }