You may also wish to search for items by Spencer, J. and Spencer.
Only one matching reference was found.
Spencer, J.L.; Hendricks, J.P.; Kerr, D., Least-squares analysis of gas chromatographic data for polychlorinated biphenyl mixtures, J. Chromatogr. A, 1993, 654, 1, 143-149, https://doi.org/10.1016/0021-9673(93)83074-3 . [all data]