Ohniště v lokalitě Shubayqa 1, kde archelogové nalezli spálené zbytky pečiva, foto Amaia Arranz-Otaegui et al., Archaeobotanical evidence reveals the origins of bread 14,400 years ago in northeastern Jordan, PNAS July 16, 2018. 201801071; published ahead of print July 16, 2018. https://doi.org/10.1073/pnas.1801071115, https://creativecommons.org/licenses/by-nc-nd/4.0/, CC BY-NC-ND 4.0.