primal
@article{leibo2010primal,
author = {Leibo, Joel Z. and Mutch, Jim and Ullman, Shimon and Poggio, Tomaso},
journal = {MIT-CSAIL-TR-2010-057, CBCL-293},
title = {{From primal templates to invariant recognition}},
url = {http://hdl.handle.net/1721.1/60216},
year = {2010}
}