Zink, M., & Grubmueller, H. (2010). Primary changes of the mechanical properties of Southern Bean Mosaic Virus upon calcium removal. Biophysical Journal, 98(4), 687-695. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B94RW-4YCF0CM-R-1&_cdi=56421&_user=38661&_pii=S0006349509017202&_orig=browse&_coverDate=02%2F17%2F2010&_sk=999019995&view=c&wchp=dGLbVtz-zSkWA&md5=e9137d298753a7044a473e85302229c4&ie=/sdarticle.pdf.