Book Knuuttila, Simo; Kärkkäinen, Pekka (2008)
Theories of Perception in Medieval and Early Modern Philosophy. (/isis/citation/CBB000831284/) unapi

Chapter Kärkkäinen, Pekka (2008)
Objects of Sense Perception in Late Medieval Erfurtian Nominalism. In: Theories of Perception in Medieval and Early Modern Philosophy (p. 187). (/isis/citation/CBB000800107/) unapi

Article Kärkkäinen, Pekka (2005)
Theology, Philosophy, and Immortality of the Soul in the Late Via Moderna of Erfurt. Vivarium: Journal for Mediaeval Philosophy and the Intellectual Life of the Middle Ages (p. 337). (/isis/citation/CBB000641050/) unapi

Article Kärkkäinen, Pekka (2004)
On the Semantics of “Human Being” and “Animal” in the Early 16th-Century Erfurt. Vivarium: Journal for Mediaeval Philosophy and the Intellectual Life of the Middle Ages (p. 237). (/isis/citation/CBB000640945/) unapi