Timonen, Juri Negative ion electrospray ionization mass spectrometry and computational studies on substituted 7-hydroxycoumarins. [electronic resource] - European journal of mass spectrometry (Chichester, England) 2009 - 595-603 p. digital Publication Type: Journal Article ISSN: 1469-0667 Standard No.: 10.1255/ejms.1019 doi Subjects--Topical Terms: Computer SimulationIsomerismSpectrometry, Mass, Electrospray Ionization--methodsUmbelliferones--analysis