Changing the Rules: A Pragmatic Approach to Product Development. - Paul K. Huntwork; Douglas W. Muzzey; Christine M. Pietras; Dennis R. Wixon (Digit. Tech. J., 1993)

The development of cognitive models of planning for use in the design of project management systems. - Christine M. Pietras; Bruce G. Coury (Int. J. Hum. Comput. Stud., 1994)