TY  - RPRT
TI  - Mathematical research related to information selection systems 
AU  - Goldman, Alan J
AU  - Edmonds, John
AU  - Goldberg, Karl
PY  - 1961
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 6883
DO  - 10.6028/NBS.RPT.6883
ER  -