TY  - RPRT
TI  - Application of the method of characteristics to predict attenuation in unsteady partially filled pipe flow 
AU  - Swaffield, J A
PY  - 1982
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 82-2478
DO  - 10.6028/NBS.IR.82-2478
ER  -