@article{Nefedov:2019Dv, author = "Nefedov, Maxim and Saleev, Vladimir Anatolievich", title = "{Off-shell initial state effects and gauge invariance in the Drell-Yan process}", doi = "10.22323/1.352.0193", journal = "PoS", year = 2019, volume = "DIS2019", pages = "193" }