ESCRIBANO, X. Paul Ludwig Landsberg, a Knight Errant of the Spirit in Barcelona. Journal of Catalan Intellectual History, [S. l.], n. 9&10, p. 9–34, 2015. Disponível em: https://revistes.iec.cat/index.php/JOCIH/article/view/139223. Acesso em: 17 jul. 2024.