Production mechanisms and single-spin asymmetry for kaons in high energy   hadron-hadron collisions
  Direct consequences on kaon production of the picture proposed in a recent Letter and subsequent publications are discussed. Further evidence supporting the proposed picture is obtained. Comparison with the data for the inclusive cross sections in unpolarized reactions is made. Quantitative results for the left-right asymmetry in single-spin processes are presented. 
C. Boros, Liang Zuo-tang and Meng Ta-chung