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2. Influence of aluminum on the flower color of hydrangea macrophylla;Allen;Boyce Thompson Institute,1943
3. Über die Reduktion der flavon- und flavanon-derivate (V. Mitteilung über die flavanon-glucoside);Asahina;Berichte der Deutschen Chemischen Gesellschaft,1929
4. Anthocyanins and other phenolic compounds in red and blue sepals of hydrangea macrophylla var. merveille;Asen;Proceedings of the American Society for Horticultural Science,1957