Polimenov, Todor. 2012. “Wittgenstein in Conversation With His Sources – H. Biesenbach: Anspielungen Und Zitate Im Werk Ludwig Wittgensteins (2011)”. Nordic Wittgenstein Review 1 (1). https://www.nordicwittgensteinreview.com/article/view/NWR-1_2012-Polimenov.