Karaduman, R., Fabrizio, P., Hartmuth, K., Urlaub, H., & Luehrmann, R. (2006). RNA structure and RNA-protein interactions in purified yeast U6 snRNPs. Journal of Molecular Biology, 356, 1248-1262. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6WK7-4HVDMDT-5-H&_cdi=6899&_user=38661&_orig=browse&_coverDate=03%2F10%2F2006&_sk=996439994&view=c&wchp=dGLbVzW-zSkzk&md5=3a5dfeacb842bf35d6108e7f11ccf67c&ie=/sdarticle.pdf.