TY  - BOOK
AU  - Akai, Koichi
AU  - Hayashi, Masao
AU  - Nishimatsu, Yuichi
TI  - Weak rock : soft, fractured and weathered rock : proceedings of the international symposium on weak rock, Tokyo, 21-24 September 1981
SN  - 9789061912088
U1  - 624.15132 AKA 
PY  - 1982///
CY  - Rotterdam
PB  - A.A. Balkema
KW  - Rock mechanics
KW  - Structural engineering
N1  - Includes bibliographical references and index.  Some summaries in French and German
ER  -