<?xml version="1.0"?>
<dblp>
<article key="journals/ijprai/RubyK93" mdate="2012-09-14">
<author>David Ruby</author>
<author>Dennis F. Kibler</author>
<title>Learning Steppingstones for Problem Solving.</title>
<pages>527-540</pages>
<year>1993</year>
<volume>7</volume>
<journal>IJPRAI</journal>
<number>3</number>
<url>db/journals/ijprai/ijprai7.html#RubyK93</url>
<ee>http://dx.doi.org/10.1142/S0218001493000273</ee>
</article>
</dblp>
