4. Balatskiy,
K., Baltzer, M., Baumgartner, C., Beckmann, A.,
Bercsenyi, M., Bogdanovic, S., Bratrich, C., Brenner,
T., De Meulenaer, T., Dick, G., Dobrovolov, I.,
Ereifej, L., Guti, G., Hochleithner, M., Jaric,
I., Jula, G., Keresztessy, K., Klindova, A.,
Koller-Kreimel, V., Lenhardt, M., Liska, I., Maereanu,
D., Maereanu, M., Mancic, S., Mas�r, J., Meszaros,
J., Moreau, D., Navodaru, I., Obrdlik, P.,
Pannonhalmi, M., Ivanova, P. P., Pint�r, K.,
Raymakers, C., Reeder, D., Rideg, A., Ring, T.,
Rosenthal, H., Sallai, Z., Schiemer, F., Schmedtje,
U., Sigmund, G., Simonovic, P., Steiner, A., Tsekov,
A., Unfer, G., Voloshkevych, A., Vukovich, Z., Wiener,
S., Zessner-Spitzenberg, M., Zinke, A. and
Zlatic-Jugovic, J. (2006). Action Plan for the
conservation of Sturgeons (Acipenseridae) in the
Danube River Basin. Bloesch, J., Jones, T.,
Reinartz, R. and Striebel, B. (Eds.). Convention on
the Conservation of European Wildlife and Natural
Habitats (Bern Convention), Nature and
Environment 144, pp. 122.