@inbook {1989|1579, title = {Stereospecific Ion-Molecule reactions in the collision cell induced by nucleophilic gas phase reagents on CI/NH4+ protonated diastereoisomeric tetracyclic terpenes.}, booktitle = {Advances in Mass Spectrometry}, volume = {11}, year = {1989}, pages = {1056}, edition = {P. Longevialle, Heyden and Son, Ed, New York}, author = {Cole, RB and Chantal Pr{\'e}vost and Tabet, JC} }