Application of chemometrics to the 1H NMR spectra of apple juices: discrimination between apple varieties - Belton,P.S.; Colquhoun,I.J.; Kemsley,E.K.; Delgadillo,I.; Roma,P.; Dennis,M.J.; Sharman,M.; Holmes,E.; Nicholson,J.K.; Spraul,M. (Food Chem, 1998)