CHEMICAL PHYSICS LETTERS, vol. 186, no. 1, page. 123 - 124, 1991-11-01
APPLIED SPECTROSCOPY, vol. 45, no. 5, page. 743 - 746, 1991-06
ANALYTICAL CHEMISTRY, vol. 63, no. 5, page. 432 - 437, 1991-03-01
GENETIC ANALYSIS TECHNIQUES AND APPLICATIONS, vol. 8, no. 1, page. 1 - 7, 1991-02