Takeshi Horinouchi
Masahide Kikkawa 
Seiya Nishizawa (Patches, NArray supports)
Arno Erpenbeck (ruby-gsl project)
Austin Newton
Jordi Burguet Castell (gsl_tensor)
Cameron McBride (Patches, vector/block manipulations)
KOSHIRO Tsuyoshi (patches)
GSL development team
zunda (patches)
Christopher Butler
Andrea Censi <andrea.censi@dis.uniroma1.it> (Bug report on Vector#*)
Daigo Moriwaki (Bug report)
Joe Wölfel (Ruby-1.9 support)
Cyrus Hall (patch for Ruby-1.9)
Dave MacMahon (patch for FFT and interface refinements)
Roman Shterenzon (Non-negative Matrix Factorization)
