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Retrieved 2022-05-13.
Wikimedia Commons has
media related to
Pobiti kamani.
Pamouktchiev,
Angel (1999). "A new
point of view over the
phenomenon "Pobitite kamani"...
- des Sciences. Publié sous la rédaction de V.
Tzankov Tzankov, V****il;
Pamouktchiev, A.; Tchechmedjieva, V.; Motekova, N. (1981). Les
fossiles de Bulgarie...
- Entcheva,
Emilia Kojumdjieva,
Nonka Motekova,
Stoycho Breskovski,
Angel Pamouktchiev et al.
Admission is free to the
museum for all visitors. The
museum is...
- Programmes. Cartermill. 1995. p. 47. ISBN 9781561590964. Tzankov, V.;
Pamouktchiev, A.; Tchechmedjeva, V.; Motekova, N. (1981). Les
fossiles de Bulgarie:...
