Stevia rebaudiana : III. High-performance liquid chromatographic separation and quantitation of rebaudiosides B, D, and E, dulcoside A, and steviolbioside von Ahmed, M.S., Dobberstein, R.H.

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Quantitative determination of thebaine in Papaver bracteatum by high-pressure liquid chromatography von Wu, Fen-Fen, Dobberstein, R.H.

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Stevia rebaudiana von Ahmed, M.S., Dobberstein, R.H.

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Stevia rebaudiana von Ahmed, M.S., Dobberstein, R.H.

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Stevia rebaudiana : II. High--performance liquid chromatographic separation and quantitation of stevioside, rebaudioside A and rebaudioside C von Ahmed, M.S., Dobberstein, R.H.

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Stevia rebaudiana von Ahmed, M.S., Dobberstein, R.H., Farnsworth, N.R.

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Oxoaporphine Alkaloids From Siparuna gilgiana von Chiu, S. Y. C, Dobberstein, R. H, Fong, H. H. S, Farnsworth, N. R

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Phytochemical Investigation of Laurelia novae-zelandiae von Adjaye, Angela E, Dobberstein, Robert H, Venton, Duane L, Fong, Harry H. S

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High-performance liquid chromatographic separation and quantitation of maytansinoids in Maytenus ilicifolia von Ahmed, M.S., Fong, H.H.S., Soejarto, D.D., Dobberstein, R.H., Waller, D.P., Moreno-Azorero, R.

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Reversed-phase high-pressure liquid chromatography of some tryptamine derivatives von Balandrin, M.F., Kinghorn, A.D., Smolenski, S.J., Dobberstein, R.H.

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The sequential appearance and metabolism of alkaloids in Heimia salicifolia von Dobberstein, R.H., Edwards, J.M., Schwarting, A.E.

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Flavonoid Constituents from Eupatorium altissimum L. (Compositae) von Dobberstein, R.H., Tin-Wa, M., Fong, H.H.S., Crane, F.A., Farnsworth, N.R.

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Biological and Phytochemical Investigation of Plants XVI: Strumpfia maritima (Rubiaceae) von Hsu, C.C., Dobberstein, R.H., Bingel, A.S., Fong, H.H.S., Farnsworth, N.R., Morton, J.F.

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Biological and Phytochemical Investigation of Plants XV. Pteryxia terebinthina var. terebinthina (Umbelliferae) von Thompson, E. B, Aynilian, G. H, Dobberstein, R. H, Cordell, G. A, Fong, H. H. S, Farnsworth, N. R

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