"Yuishiki Towa Nanika `Hosso-Nikan-Sho` wo Yomu" (How to read the "An Excerption from Faxiang 2 Scrolls") by Koitsu YOKOYAMA published by Shunjusha Publishing Company in 2001; a newly enlarged edition in 2005
横山紘一　『唯識とは何か「法相二巻抄」を読む』（春秋社　2001年　増補版2005年）