From: http://www.netlib.org/blas/faq.html 2) Are there legal restrictions on the use of BLAS reference implementation software? The reference BLAS is a freely-available software package. It isavailable from netlib via anonymous ftp and the World Wide Web. Thus,it can be included in commercial software packages (and has been). Weonly ask that proper credit be given to the authors. Like all software, it is copyrighted. It is not trademarked, but we doask the following: If you modify the source for these routines we ask that you change thename of the routine and comment the changes made to the original. We will gladly answer any questions regarding the software. If amodification is done, however, it is the responsibility of the personwho modified the routine to provide support.