@misc{1147006, author = {Eric S Lagergren}, title = {Effects of testing variables on the measured compressive strength of high-strength (90 MPa) concrete:}, year = {1994}, month = {1994-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.5405}, language = {en}, }