TY  - RPRT
TI  - Effects of testing variables on the measured compressive strength of high-strength (90 MPa) concrete 
AU  - Lagergren, Eric S
PY  - 1994
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 5405
DO  - 10.6028/NIST.IR.5405
ER  -