pag1 - Romanian Institute of Science and Technologydanca.rist.ro/doc/approx.pdf · M.-F. Danca, S...
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pag1 - Romanian Institute of Science and Technologydanca.rist.ro/doc/approx.pdf · M.-F. Danca, S Codreanu / Chaos, and Fractals 13 (2002) 681-691 Graph(g) Fig. 3. A selection in