Realismo y el objetivo de la ciencia / Realism and the Aim of Science (Paperback, 3rd) - Post Scriptum a La Logica De La Investigacion Cientifica / Postscript to the Logic of Scientific Research
Teoria cuantica y el cisma en fisica / Quantum Theory and the Schism in Physics (Paperback, 4th) - Post Scriptum a La Logica De La Investigacion Cientifica / Postscript to the Logic of Scientific Research
El universo abierto / The Open Universe (Paperback, 4th) - Un argumento a favor del indeterminismo. Post Scriptum a La logica de la investigacion cientifica / An argument for indeterminism. Postscript to the l