Apollonius, Descartes and Steiner in a squeezed heart of palm can. (Apolonio, Descartes y Steiner en un apretado envase de palmitos.) (Spanish)
Números, No. 73, 25-33 (2010).
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Design of educational multiplayer videogames: A vision from collaborative learning. (English)
Adv. Eng. Softw. 40, No. 12, 1251-1260 (2009).
2
The solitaire of Abreu analysed by means of group theory. (El solitario de Abreu desde la teoria elemental de grupos.) (Spanish)
Epsilon (Puerto Real), No. 35, 291-308 (1996).
3