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License Notes
This license was found on the "doublestroke" component of texlive 2010. It is a Font license, Free but GPL-incompatible.
License Text
License ------- You may use and distribute these fonts as you like. You may modify these fonts as long as you do not rename the files to one of those names that Donald E. Knuth chose for the Computer Modern fonts. (And seriously, who would want to do that?)