Groessl, Michael, et al. “Comparison of UHPLC-ESI-MS and Hadamard Transform Atmospheric Pressure Ion Mobility-ESI-MS for Rapid Profiling of Isomeric Flavonoids”. CHIMIA, vol. 68, no. 3, Mar. 2014, p. 135, https://doi.org/10.2533/chimia.2014.135.