[SciPy-dev] license for code published in articles

Is code that is published verbatim inside a paper (not as attachment) license restricted? The Journal of Statistical Software publishes code under GPL. Does GPL also apply to source snippets or functions that are included in the text of the article, or is there a fair use assumption on the text of the article? example: Kolmogorov distribution for two-sided ks-test paper: http://www.jstatsoft.org/v08/i18 George Marsaglia, Wai Wan Tsang, Jingbo Wang: Evaluating Kolmogorov's Distribution, Journal of Statistical Software Vol. 8, Issue 18, Nov 2003 discussion: http://projects.scipy.org/pipermail/scipy-dev/2004-July/002182.html Josef