TI  - SLeep and wakefulness as alternating phases in the cycle of existence
PT  - JOUR
DP  - 1939
TA  - Journal of the American Medical Association
pages = {2086},
VI  - 113
IP  - 23
AID  - 10.1001/jama.1939.02800480071032 [doi]
4100  - http://dx.doi.org/10.1001/jama.1939.02800480071032
SO  - Journal of the American Medical Association December 2, 1939 113(23):2086