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Books about Ryusai:
Ryusai kenkyu bunken yoran (Japanese Edition) by Yuken Fujita (1985)
Aisuru tairiku yo: Shijin Kin Ryusai kenkyu (Japanese Edition) by Masuo Omura (1992)
Wiki information Ryusai:
Ryūsai Shigeharu was an Osaka-based Japanese ukiyo-e woodblock print artist active during the first half of the nineteenth century. A member of the Utagawa school, he was one of a very select group of kamigata-e print artists who were able to support...