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FOLCH, J.; COCERO, M.J.; CHESNÉ, P. First birth of an animal from an extinct subspecies (Capra pyrenaica pyrenaica) by cloning. Theriogenology. 2009-04, roč. 71, čís. 6, s. 1026–1034. Dostupné online [cit. 2018-05-08]. ISSN0093-691X. DOI10.1016/j.theriogenology.2008.11.005. (anglicky)
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PEREZ, Jesus M.; GRANADOS, Jose E.; SORIGUER, RamoN C. Distribution, status and conservation problems of the Spanish Ibex, Capra pyrenaica (Mammalia: Artiodactyla)+. Mammal Review. 2002-03, roč. 32, čís. 1, s. 26–39. Dostupné online [cit. 2018-05-08]. ISSN0305-1838. DOI10.1046/j.1365-2907.2002.00097.x. (anglicky)
worldcat.org
FOLCH, J.; COCERO, M.J.; CHESNÉ, P. First birth of an animal from an extinct subspecies (Capra pyrenaica pyrenaica) by cloning. Theriogenology. 2009-04, roč. 71, čís. 6, s. 1026–1034. Dostupné online [cit. 2018-05-08]. ISSN0093-691X. DOI10.1016/j.theriogenology.2008.11.005. (anglicky)
PEREZ, Jesus M.; GRANADOS, Jose E.; SORIGUER, RamoN C. Distribution, status and conservation problems of the Spanish Ibex, Capra pyrenaica (Mammalia: Artiodactyla)+. Mammal Review. 2002-03, roč. 32, čís. 1, s. 26–39. Dostupné online [cit. 2018-05-08]. ISSN0305-1838. DOI10.1046/j.1365-2907.2002.00097.x. (anglicky)