Abreu, PilarGuerra, EstherPlaza, Ángel2024-09-042024-09-042005-06-01Teaching Mathematics and Computer Science, Vol. 3 No. 1 (2005) , 121-1221589-7389https://hdl.handle.net/2437/379552x_0 > 0 …application/pdfproof without wordsfolyóiratcikkOpen AccessPilar Abreu, Esther Guerra and Ángel Plazahttps://doi.org/10.5485/TMCS.2005.0087Teaching Mathematics and Computer Science13Teach. Math. Comp. Sci.2676-8364