Triplets associated to virtual knot diagrams Margarita Toro, José Gregorio Rodríguez 97-108 PDF (Español (España))
Recursion, induction and well-founded orders Carlos Parra-Londoño, Diego Mejía-Guzmán 143-150 PDF (Español (España))
Some remarks on a generalized vector product Primitivo Acosta Humánez, Moisés Aranda, Reinaldo Núñez 151-162 PDF (Español (España))
Solving geometric problems through experimental mathematics: use of dynamic geometric software to construct on unknown locus Martín E. Acosta, Carolina Mejía, Carlos W. Rodriguéz 163-174 PDF (Español (España))
