Cao, X. ., Cai, X. ., & Mo, W. . (2018). Comparing the fragmentation reactions of protonated cyclic indolyl α-amino esters in Q/Orbitrap and QTOF mass spectrometers. Rapid Communications in Mass Spectrometry : RCM. https://doi.org/10.1002/rcm.8063 (Original work published 2018)