TY  - RPRT
TI  - Simultaneous two channel frequency analyzer with non-electronic (passive) filters.
AU  - M MEISTER
AU  - R S SCHWAB
AU  - E PETERSEN
AU  - A GRASS
PY  - 1959
DO  - 10.1016/0013-4694(59)90063-x
UR  - https://pubmed.ncbi.nlm.nih.gov/13663836/
ID  - 13663836
ER  -