Boëda Éric, Bonilauri Stéphanie, Connan Jacques, Jarvie Dan, Mercier Norbert, Tobey Mark, Valladas Hélène & Al-Sakhel Heba, 2008 — New Evidence for Significant Use of Bitumen in Middle Palaeolithic Technical Systems at Umm el Tlel (Syria) around 70,000 BP. Mousterian tools with traces of bitumen on their surfaces discovered at Umm el Tlel (Syria) have been dated to 40,000 years(BP)… Paléorient vol. 34, n° 2, p. 67-83 ISBN: 0153-9345 Publisher: CNRS Type: 10.3406/paleo.2008.5257
https://dx.doi.org/10/ghn3wp
Boëda Éric, Bonilauri Stéphanie, Connan Jacques, Jarvie Dan, Mercier Norbert, Tobey Mark, Valladas Hélène, Sakhel Heba al & Muhesen Sultan, décembre 2008 — Middle Palaeolithic bitumen use at Umm el Tlel around 70 000 BP. Antiquity vol. 82, n° 318, p. 853-861 ISBN: 0003-598X Publisher: Antiquity Publications/Cambridge University Press Type: 10.1017/S0003598X00097623
https://dx.doi.org/10/gf7vbx