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2. Kleinbaum, D. and Kupper, L., “Applied Regression Analysis and Other Multivariable Methods”, Duxbury Press, North Scituate, MA, 1978.
3. Roberts, T., “Cryocooler Transient Performance Modeling”, Cryocoolers 9, Plenum Press, New York (1997), pp. 163–171.
4. Roberts, T. and Bruning, J., “Creare SSTC Acceptance Test and Performance Mapping Results”, Phillips Laboratory (AFRL) Interim Report, Kirtland AFB, NM (1996).