Kappeler, P., Briggs, J., Hänninen, P., Kritchever, Y., & LaBelle, P. (2005). z/OS 1.6 security services update. IBM, International Support Organization.

Kappeler, Patrick, Jonathan Briggs, Pekka Hänninen, Yury Kritchever, and Peggy LaBelle. Z/OS 1.6 Security Services Update. San Jose, CA: IBM, International Support Organization, 2005.

Kappeler, Patrick, et al. Z/OS 1.6 Security Services Update. IBM, International Support Organization, 2005.