Autores

•  Germán Córdoba B. (3)
•  Martha Ruth Manrique Torres (3)
•  Fredy Alberto Reyes Lizcano (3)
•  Adriana Aristizábal Castrillón (3)
•  Alberto Casas (2)
•  Martin Gardner (2)
•  Raymond Smullyan (2)
•  Ricardo Pinto Garcia (2)
•  Marie Berrondo Agrell (2)
•  Salvador Miret Artés (2)
•  Edgar Antonio Vargas Castro (2)
•  Nessa Carey (1)
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