Thi Minh Thu Tran; Thanh Binh Nguyen; Peter Winterhalter; Gerold Jerz. Off-Line ESI-MS/MS Profiling of Betalains and Flavonoid Glycosides Isolated from (fruit) Opuntia Stricta Var. dillenii and (vegetable) Atriplex Hortensis Var. rubra By Countercurrent Chromatography. VJSTE 2022, 64, 20-26.