TY  - RPRT
TI  - Exercise and sleep behaviour. A questionnaire approach.
AU  - J M Porter
AU  - J A Horne
PY  - 1981
DO  - 10.1080/00140138108924872
UR  - https://pubmed.ncbi.nlm.nih.gov/7333268/
ID  - 7333268
ER  -