Ohara, Makoto. <br/><br/>
Trial construction of asteel - framed exchage office and vi-bration experiments / Makoto Ohara, Yonco Sugimoto. 

 - [Tokio, Japón] : Nippon Telegraph & Telephone Public Corportation 
 - 12 p. 
 - NTT Technical report; B no. 13-OJ .