Maintas, X. N., F. K. Diakonos, G. D. Galanopoulos, N. K. Kaplis, C. I. Papoulias, and H. E. Tsagkarakis. “Bound State Effects in Transverse Momentum Parton Distributions”. HNPS Advances in Nuclear Physics, vol. 15, Jan. 2020, pp. 225-32, doi:10.12681/hnps.2642.