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2. Von den coefficienten der Reihen von Kugelfunctionen einer variabeln;Bauer;J. Reine Angew. Math.,1859
3. Pi and the AGM;Borwein,1998
4. Factors of sums of powers of binomial coefficients;Calkin;Acta Arith.,1998
5. Basic Hypergeometric Series;Gasper,2004