TY  - RPRT
TI  - Normal sleep, disturbed sleep, transient and persistent insomnia.
AU  - W C Dement
PY  - 1986
DO  - 10.1111/j.1600-0447.1986.tb08979.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2883827/
ID  - 2883827
ER  -