Annales Universitatis Paedagogicae Cracoviensis | Studia ad Didacticam Mathematicae Pertinentia > 2010 > 3 > 56-66
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journal ISSN : | 2450-341X , 2080-9751 |
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Bibliography
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Aczel, J., Dhombres, J.: 1989, Functional equation in several variables, Encyclop. Math. and its Appl. 31,197-224.
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Hardy, G. H., Littlewood, J. E., Polya, G.: 1952, Inequalities, Cambridge Univ. Press, Cambridge.
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Kolmogorov, A.: 1930, Sur la notion de la moyenne, Alti Accad. Naz. Lincei 12(6), 388-391.