Ellnain-Wojtaszek, M. High-performance liquid chromatography and thin-layer cgromatography of phenolic acids from "Ginkgo biloba" L. leaves collected within vegetative period M. Ellnain-Wojtaszek, G. Zgorka - Journal of Liquid Chromatography & Related Technologies . Subjects--Index Terms: Extractos vegetales Acidos fenolicos Cromatografia Tecnicas analiticas