WOHLISCH, E [The quotient of the depth of sleep and the concept of the depth of sleep]. [electronic resource] - Klinische Wochenschrift Nov 1953 - 1010-1 p. digital Publication Type: Journal Article ISSN: 0023-2173 Standard No.: 10.1007/BF01533827 doi Subjects--Topical Terms: HumansSleep--physiology