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El Ordovicico del sector occidental de Stara Planina (Montes Balcanes), Bulgaria: Icnofosiles e implicationes paleobiogeograficas
Aceñolaza,, F. G., Yanev, S.
Revista del Museo Argentino de Ciencias Naturales
Aasta: 1982 | Köide: 3 | Leheküljed: 157-164 | artikkel ajakirjas
Ichno-and body-fossils from the Upper Triassic-Lower Jurassic Sinivir Formation in the Balaban Dere Valley (East Strata Planina Mts, east Bulgaria) and the problem of the Triassic/Jurassic boundary
Tochoumatchenco, P., Yaneva, M., Uchman, A., Tronkov, D., Trifonova, E., Petrunova, L.
Acta Palaeontologica Romaniae
Aasta: 2005 | Köide: 5 | Leheküljed: 463-475 | artikkel ajakirjas
Sand Dune Destruction Due to Increased Human Impacts along the Bulgarian Black Sea and Estonian Baltic Sea Coasts
Stancheva, M., Ratas, U., Orviku, Kaarel, Palazov, A., Rivis, R., Kont, A., Peychev, V., Tõnisson, H., Stanchev, H.
Journal of Coastal Research
Proceedings of the 11th International coastal Symposium
Aasta: 2011 | Köide: SI 64 | Leheküljed: 324-328 | artikkel ajakirjas
Ordovician of the western area of Stara Planina (Balkan Mounlains), Bulgaria: Trace fossils and palaeogeopaphic implications
Aceñolaza, F. G., Yanev, S.
Revista del Museo Argentino de Ciencias Naturales
Aasta: 2001 | Köide: 3 | Leheküljed: 55-72 | artikkel ajakirjas
A mixed assemblage of deep-sea and shelf trace fossils from the Lower Cretaceous (Valanginian) Kamchia Formation in the Troyan region, central Fore-Balkan, Bulgaria
Uchman, A., Tchoumatchenco, P.
Annales Societatis Geologorum Poloniae
Aasta: 2003 | Köide: 73 | Leheküljed: 27-34 | artikkel ajakirjas