Archived from the original on February 25, 2004. Retrieved October 10, 2015. 天文成象 / 保井春海Bao Jing chun Mei [著] ; 保井昔尹Bao Jing xi Yin [編]. Wul.waseda.ac.jp.
(乙川弘文), Sōtō Zen priest Shōhaku Okumura (奥村正博), Dōgenist Shunryu Suzuki (鈴木俊隆), Sōtō Zen priest Soyu Matsuoka (松岡操雄), Founder of Zen Buddhist Temple of