Media type: E-Article Title: Two new triterpenes from Betula platyphylla Contributor: Ikekawa, N.; Ohta, A.; Seki, M.; Takahashi, A. imprint: Elsevier BV, 1972 Published in: Phytochemistry Language: English DOI: 10.1016/0031-9422(72)80100-6 ISSN: 0031-9422 Keywords: Horticulture ; Plant Science ; Molecular Biology ; General Medicine ; Biochemistry Origination: Footnote: