Development and attributes of z/Architecture. - Kenneth E. Plambeck; Wolfgang Eckert; Robert R. Rogers; Charles F. Webb (IBM J. Res. Dev., 2002)

zAAPs and zIIPs: Increasing the strategic value of System z. - Les W. Wyman; José Castaño; Jeffrey P. Kubala; Robert J. Maddison; Bernard R. Pierce; Robert R. Rogers (IBM J. Res. Dev., 2007)