A Critique of Validation/Verification Techniques for Software Development Measures. - David A. Gustafson; Ramón A. Mata-Toledo; Richard E. Courtney; Naim Temsamani (Formal Aspects of Measurement, 1991)

Shotgun correlations in software measures. - Richard E. Courtney; David A. Gustafson (Softw. Eng. J., 1993)