The Strange Quark Problem in the Framework of Statistical Distributions
  A large class of polarized and unpolarized deep inelastic data is successfully described with Fermi-Dirac functions for the non-diffractive part of quark parton distributions. The NLO approach used here improves the agreement with experiment of the previous LO work. We get a broader distribution for the strange parton s(x) than for sbar(x). 
F. Buccella, O. Pisanti, and L. Rosa