5Becharik, G., 1996. "The Jinmium claims". The Artefact 19:107-8.
6Bednarik. G., 2002. "About the age of pilbara rock art". Anthropos 97 (1): 201 - 15.
7Crivelli Mintero, E. A., and. Femandez M. M, 1996. "Palaeoindian bedrock petroglyphs at Epullan Grande Cave, northern Patagonia , Argentina". Rock Art Research 13:112 - 7.
8Bednarik, R. G. 2000. "Age estimates for the petroglyph sequence of Inca Huasi, Mizque, Bolivia". Andean Prat6: 227-87.
9Mark Brennand & Maisie Taylor 2003. "The Survey and Excavation of a Bronze Age Timber Circle at Holme - next - the Sea, Norfolk, 1998- 9". Proceedingsof the Prehistoric Society 69: 1 - 87.
10Morris, Ronald W. B.: 1998. "The Cup - and Ring Motif in the Rock Art of the British Isles and in America," Occasional Papers,Epigraphic Society17: 19.
