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1by Epstein, Hans### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1929Berlin, E. Ebering, 1929.69 p. 24 cm. -
2by Epstein, Hans### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1932Berlin : [Springer, 1932]S. 252 - 270 : graph. Darst ; 8̊