K. Nurmi

Variation of total phenolic content and individual low-molecular-weight phenolics in foliage of mountain birch trees (Betula pubescens ssp.tortuosa)

V. Ossipov, E. Haukioja, K. Pihlaja, 1996, Journal of Chemical Ecology.

High-performance liquid chromatographic separation and identification of phenolic compounds from leaves of Betula pubescens and Betula pendula

V. Ossipov, E. Haukioja, K. Pihlaja, 1996 .

HPLC isolation and identification of flavonoids from white birch Betula pubescens leaves

V. Ossipov, E. Haukioja, K. Pihlaja, 1995 .