TY  - RPRT
TI  - The proper values of the sum and product of symmetric matrices 
AU  - Likskii, V B
AU  - Forsythe, George E
PY  - 1953
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 2248
DO  - 10.6028/NBS.RPT.2248
ER  -