Karabinos, A., Schuenemann, J., & Weber, K. (2004). Most genes encoding cytoplasmic intermediate filament (IF) proteins of the nematode Caenorhabditis elegans are required in late embryogenesis. European Journal of Cell Biology, 83(9), 457-468. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B7GJ2-4F9DYW2-15-1&_cdi=20194&_user=38661&_orig=browse&_coverDate=01%2F01%2F2004&_sk=999169990&view=c&wchp=dGLzVtz-zSkzS&md5=af90462e282dcbb44ec456d9aac8ba0a&ie=/sdarticle.pdf.