Gass-phase fragmentation of 'upsilon'-lactone derivatives by electrospray ionization tandem mass spectrometry - Crotti, Antonio Eduardo Miller; Uhle, Erika S. Bronze; Nascimento, Paulo Gustavo Barboni Dantas; Donate, Paulo Marcos; Galembeck, Sérgio Emanuel; Vessecchi, Ricardo; Lopes, Norberto Peporine (Journal of Mass Spectrometry, 2009)