TY  - RPRT
TI  - Mechanical failure : definition of the problem
AU  - Shives, T R
AU  - Willard, W A
PY  - 1976
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 423
DO  - 10.6028/NBS.SP.423
ER  -