TY  - RPRT
TI  - Algorithm for detecting the first and the second heart sounds by spectral tracking.
AU  - A Iwata
AU  - N Ishii
AU  - N Suzumura
AU  - K Ikegaya
PY  - 1980
DO  - 10.1007/bf02442475
UR  - https://pubmed.ncbi.nlm.nih.gov/6991835/
ID  - 6991835
ER  -