Extreme programming in the telecommunications domain. - Bill Pyritz (Bell Labs Tech. J., 2003)

Craftsmanship versus engineering: Computer programming - An art or a science? - Bill Pyritz (Bell Labs Tech. J., 2003)

Agile Methods for Safety-Critical Software Development. - Kelly Weyrauch; Mary Poppendieck; Ron Morsicato; Nancy Van Schooenderwoert; Bill Pyritz (XP/Agile Universe, 2004)