@article{PA20110398.pdf, <br>author="Grant S. McCall, Theodore P. Marks, JonathanT. Thomas, Merritt Eller, Sherman W. Horn III, Rachel A. Horowitz, Kurtis Kettler, and Rebecca Taylor-Perryman",<br>title="Erb Tanks: a Middle and Later Stone Age Rockshelter in the Central Namib Desert, Western Namibia.",<br>journal="PaleoAnthropology",<br>year="2011",<br>volume="2011",<br>pages="398-421"<br>}