@article{Ioannou:2005YZ, author = "Ioannou, Mihalis and Panagopoulos, Haralambos", title = "{Perturbative renormalization in parton distribution functions using improved actions}", doi = "10.22323/1.020.0229", journal = "PoS", year = 2005, volume = "LAT2005", pages = "229" }