Investigation Data Quality Problems in the PSP. - Anne M. Disney; Philip M. Johnson (SIGSOFT FSE, 1998)

The Personal Software Process: A Cautionary Case Study. - Philip M. Johnson; Anne M. Disney (IEEE Softw., 1998)

A Critical Analysis of PSP Data Quality: Results from a Case Study. - Philip M. Johnson; Anne M. Disney (Empir. Softw. Eng., 1999)