title: Infrared vibrational spectra as a structural probe of gaseous ions formed by caffeine and theophylline.
authors.affiliation: Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1. ramarta@uwaterloo.ca
authors.forename: Richard A
authors.initials: RA
authors.lastname: Marta
authors.forename: Ronghu
authors.initials: R
authors.lastname: Wu
authors.forename: Kris R
authors.initials: KR
authors.lastname: Eldridge
authors.forename: Jonathan K
authors.initials: JK
authors.lastname: Martens
authors.forename: Terry B
authors.initials: TB
authors.lastname: McMahon