Schmidt, Helmut, 1922 January 27- Modern polarographic methods / Helmut Schmidt [and] Mark von Stackelberg. Translated by R.E.W. Maddison. - New York : Academic Press, c1963. - v, 99 p. : illus. ; 23 cm. Translation of Die neuartigen polarographischen Methoden. Bibliography: p. 94-96. and index. Subjects--Topical Terms: Polarography. Dewey Class. No.: 543.4 / SCM 1963