TY  - RPRT
TI  - Approximate minimum bias multichannel spectral estimation for heart rate variability.
AU  - E G Lovett
AU  - J B Myklebust
DO  - 10.1007/bf02684191
UR  - https://pubmed.ncbi.nlm.nih.gov/9146805/
ID  - 9146805
ER  -