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, K.F., Rational approximations to algebraic numbers, Mathematika 2 (1955), 1-20, corrigendum 168. Andreas Dress Mathematics Department Bielefeld University Postfach 10 01 31 33 501 Bielefeld, Germany e-mail: dress@mathematik.uni-bielcfeld.de Florian Luca Instituto de Matemáticas de la UNAM Campus Morelia Apartado Postal 61-3 (Xangari), CP 58089 Morelia, Michoácan, Mexico e-mail: fluca@matmor.unam.mx