Hadroproduction of var(phi)-mesons in the Quark-Gluon String model
  We consider the experimental data on var(phi)-meson production in hadron-nucleon collisions for a wide energy region. The Quark-Gluon String Model quantitatively describes the spectra of secondary var(phi), as well as the ratios of var(phi)/pi^- and var(phi)/K^- production cross sections. 
G.H. Arakelyan, C. Merino, and Yu.M. Shabelski
hep-ph