Korff, Serge Alexander, 1906- Electron and nuclear counters : theory and use / With chapter on scintillation counters by H. Kallmann. - 2d ed. - New York : Van Nostrand, c1955 - 363 p. : ill. ; 22 cm. Subjects--Topical Terms: Nuclear counters. Dewey Class. No.: 539.77 / KOE 1955