String Junction Effects for Forward and Central Baryon Production in   Hadron-Nucleus Collisions
  The process of baryon number transfer due to string junction propagation in rapidity space is considered. It leads to a significant effect in the net baryon production in pA collisions at mid-rapidities and an even more significant effect in the forward hemisphere for the cases of \pi A interactions. The results of numerical calculations in the framework of the Quark-Gluon String Model are in reasonable agreement with the data. Special consideration is given to \Lambda produced in {\pi^-}-A collisions extracted from data of WA89 Collaboration. 
F. W. Bopp, Yu. M. Shabelski