@article{ref1,
title="The life and contributions of Burrhus Frederick Skinner: a biographical sketch",
journal="Education and treatment of children",
year="1990",
author="Hawkins, Robert P.",
volume="13",
number="3",
pages="258-263",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0748-8491",
doi="",
url="http://dx.doi.org/"
}