TY  - RPRT
TI  - Delta component variations in human sleep electroencephalogram.
AU  - E Koga
PY  - 1977
DO  - 10.1111/j.1440-1819.1977.tb00134.x
UR  - https://pubmed.ncbi.nlm.nih.gov/608665/
ID  - 608665
ER  -