TY  - RPRT
TI  - Mortar Strength, A Problem of Practical Statistics.
AU  - J W Gowen
AU  - H W Leavitt
AU  - W S Evans
PY  - 1925
DO  - 10.1073/pnas.11.1.11
UR  - https://pubmed.ncbi.nlm.nih.gov/16586956/
ID  - 16586956
ER  -