@article{article7d337043,
title   = {Distinction of the C-glycosylflavone isomer pairs orientin/isoorientin and vitexin/isovitexin using HPLC-MS exact mass measurement and in-source CID},
author = {Pereira, Cíntia A. M and Yariwake, Janete Harumi and McCullagh, Michael},
year = {2005},
doi = {10.1002/pca.820},
journal   = {Phytochemical Analysis}
}