Teleology, First Principles, and Scientific Method in Aristotle's Biology Gotthelf Allan Innbundet / 2012 / Engelsk
Metaethics, Egoism, and Virtue Studies in Ayn Rand's Normative Theory Gotthelf Allan Heftet / 2014 / Engelsk
Concepts and Their Role in Knowledge Reflections on Objectivist Epistemology Gotthelf Allan Heftet / 2024 / Engelsk
