Explanatory Analysis of the Metabolome Using Genetic Programming of Simple, Interpretable Rules. - Helen E. Johnson; Richard J. Gilbert; Michael K. Winson; Royston Goodacre; Aileen R. Smith; Jem J. Rowland; Michael A. Hall; Douglas B. Kell (Genet. Program. Evolvable Mach., 2000)

PYCHEM: a multivariate analysis package for python. - Roger M. Jarvis; David Broadhurst; Helen E. Johnson; Noel M. O'Boyle; Royston Goodacre (Bioinform., 2006)