Herold, N., Will, C. L., Wolf, E., Kastner, B., Urlaub, H., & Lührmann, R. (2009). Conservation of the protein composition and electron microscopy structure of Drosophila melanogaster and human spliceosomal complexes. Molecular and Cellular Biology, 29(1), 281-301. Retrieved from http://mcb.asm.org/cgi/content/full/29/1/281.