Nilsson, M. S., Bravina, L. V., Zabrodin, E. E., Malinina, L. V., & Bleibel, J. (2011). Study of ππ correlations at LHC and RHIC energies in pp collisions within the quark-gluon string model. Physical Review D, 84(5): 054006. doi:10.1103/PhysRevD.84.054006.