Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2012). Measurement of upsilon production in pp collisions at root s=7 TeV. European Physical Journal C, 72(6): 2025. doi:10.1140/epjc/s10052-012-2025-y.