TY  - RPRT
TI  - Software science' revisited: rationalizing Halstead's system using dimensionless units. 
AU  - Flater, David
PY  - 2018
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST TN 1990
DO  - 10.6028/NIST.TN.1990
ER  -