Diversity and Dynamics of Eurasian Languages
The 20th Commemorative Volume 
ユーラシア諸言語の多様性と動態
－20 号記念号－
Dedicated to Prof. Dr. Masahiro Shōgaito
追悼 庄垣内正弘先生
Edited by
Tooru HAYASITomoyuki KUBOSetsu FUJISHIRONoriko OHSAKIYasuhiro KISHIDAMutsumi SUGAHARA