Hiramatsu, Yoshio. <br/><br/>
Precalculation of the ground subsidence caused by making la-rge spaces underground / by Yoshio Hiramatsu and Yukitoshi -Oka. 

 - Kyoto, Japon : Kyoto University, Engineering Research Institute  Organización Latinoamericana de Energía 
 - [18] p. 
 - Report; No. 141 .