STEINECKE, Hilke. Graureiher-Festmahl am Großen Weiher. Der Palmengarten, [S. l.], v. 71, n. 1, p. 79–80, 2007. DOI: 10.21248/palmengarten.33. Disponível em: https://ojs.ub.uni-frankfurt.de/Palmengarten/index.php/Palmengarten/article/view/33. Acesso em: 19 mai. 2024.