@article{PA20140565.pdf,
author="Ekaterina V. Doronicheva and M. Steven Shackley",
title="Obsidian Exploitation Strategies in the Middle and Upper Paleolithic of the Northern Caucasus: New Data from Mesmaiskaya Cave",
journal="PaleoAnthropology",
year="2014",
volume="2014",
pages="565-585"
}