Kosmos 1 Owner's Manual page 50

Pavlidis, Tbeodisios. Biological Oscillations: Their Mathematical Analysis. New York and
london: Academic
Press, 1965.
PengelleYt EricT: (ed.). Circannual Clocks: Annual Biological Rhythms. Ne',\,Yorl<:
Academic Press, 1976.
Rejmann, Hoban A. Periodic Diseases. Philadelphia:
F. A. Davis Co., 1963.
Reinberg, Alain, and Jean Ghar.. Biological Rhythms. New York: Walker 8< Co., 1964.
Richrer, Paul Cun.
~!!l
Clocks in Medicine and Psychiatry. Springfield, Illinois:
Charles C. Thomas, Publisher, 1965.
Roerhlisberger, F.
J.
and W.
J.
Dickson. Management and the Worker. Cambridge: HaIVard
University Press, 1946.
47