| 1 |
000556 |
Muus, B.J. and P. Dahlström,1968.Süßwasserfische..BLV Verlagsgesellschaft, München. 224 p. |
| 2 |
009953 |
Sokolov, L.I. and L.S. Berdicheskii,1989.Acipenseridae..p. 150-153. In J. Holcík (ed.) The freshwater fishes of Europe. Vol. 1, Part II. General introduction to fishes Acipenseriformes. AULA-Verlag Wiesbaden. 469 p. |
| 3 |
013729 |
Amori, G., F.M. Angelici, S. Frugis, G. Gandolfi, R. Groppali, B. Lanza, G. Relini and G. Vicini,1993.Vertebrata..In A. Minelli, S. Ruffo and S. La Posta (eds.) Checklist delle specie della fauna Italiana, 110. Calderini, Bologna, 83 p. |
| 4 |
027368 |
Gerstmeier, R. and T. Romig,1998.Die Süßwasserfische Europas: für Naturfreunde und Angler..Franckh-Kosmos Verlag, Stuttgart, Germany. 368 p. |
| 5 |
045022 |
Bogutskaya, N.G. and A.M. Naseka,2002.An overview of nonindigenous fishes in inland waters of Russia..Proc. Zool. Inst. Russ. Acad. Sci. 296:21-30. |
| 6 |
050345 |
Quignard, J.P. and J.A. Tomasini,2000.Mediterranean fish biodiversity..Biol. Mar. Mediterr. 7(3):1-66. |
| 7 |
055893 |
Plikss, M.,2002.Fish of Latvia..http://latvijas.daba.lv/scripts/db/saraksti/saraksti.cgi?d=zivis&l=en. Accessed 24/11/05. |
| 8 |
059043 |
Kottelat, M. and J. Freyhof,2007.Handbook of European freshwater fishes..Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. |
| 9 |
087703 |
AFMAFEWM (Austrian Federal Ministry of Agriculture, Forestry, Environment and Water Management),2011.Checklist of species in Austria..Federal Office for Water Management, Institute of Waters Ecology, Fisheries and Lake Research. |
| 10 |
119201 |
Bianco, P.G. and V. Ketmaier,2016.Nature and status of freshwater and estuarine fisheries in Italy and Western Balkans..p. 283-291. In J.F. Craig (ed.). Freshwater Fisheries Ecology. John Wiley & Sons Ltd. 899p. |