Recent results on pp → ppϕ/K+K− production and the momentum dependence of ϕ-meson nuclear transparencyM. Hartmann, B. Kämpfer, Yu.T Kiselev, Y. Maeda, V.K. Magas, E.Ya. Paryev, A. Polyanskiy, L. Roca, H. Schade, C. Wilkin and Q.J. YeEPJ Web of Conferences, 36 (2012) 00011DOI: https://doi.org/10.1051/epjconf/20123600011