Voix des oiseaux en vol (+ Livret 3 langues)Hans-Heiner Bergmann, Claude Chappuis, Karl-Heinz Dingler · First published 2014Open the Tome
Biodiversity and ecological status along the northern coast of the Sea of OkhotskAleksandr Vladimirovich Andreev, Hans-Heiner Bergmann · First published 2001Open the Tome
Die Haselhühner: Bonasa bonasia und B. sewerzowi : Haselhuhn und Chinahaselhuhn (Die neue Brehm-Bücherei) (German Edition)Hans-Heiner Bergmann · First published 1996Open the Tome
