Tuma, J., Paulini, R., Stutz, J. A. R., & Richert, C. (2004). How much pi-stacking do DNA termini seek? Solution structure of a self-complementary DNA hexamer with trimethoxystilbenes capping the terminal base pairs. Biochemistry, 43(50), 15680-15687. Retrieved from http://pubs.acs.org/doi/full/10.1021/bi048205y.