Weinmann, L., Hoeck, J., Ivacevic, T., Ohrt, T., Muetze, J., Schwille, P., et al. (2009). Importin 8 is a gene silencing factor that targets argonaute proteins to distinct mRNAs. Cell, 136(3), 496-507. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6WSN-4VF5RM1-1-F&_cdi=7051&_user=38661&_orig=search&_coverDate=02%2F06%2F2009&_sk=998639996&view=c&wchp=dGLzVzz-zSkWz&md5=a5ac816807d7bafc0794e7c17fa08870&ie=/sdarticle.pdf.