TY  - RPRT
TI  - A spatial vector analyzer for the conventional electrocardiogram.
AU  - E SIMONSON
PY  - 1953
DO  - 10.1161/01.cir.7.3.403
UR  - https://pubmed.ncbi.nlm.nih.gov/13033069/
ID  - 13033069
ER  -