Jürgen Börstler David A. Carrington Gregory W. Hislop Susan K. Lisack Keith Olson Laurie A. Williams Teaching the PSP: Challenges and Lessons Learned. 42-48 2002 19 IEEE Software 5 http://doi.ieeecomputersociety.org/10.1109/MS.2002.1032853 db/journals/software/software19.html#BorstlerCHLOW02