TY  - RPRT
TI  - An algorithm and computer program for the calculation of envelope curves 
AU  - McClain, M
AU  - Feldman, A
AU  - Kahaner, D
AU  - Ying, X T
PY  - 1989
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 89-4210
DO  - 10.6028/NIST.IR.89-4210
ER  -