Mechanism of the hairpin folding transformation of thymine-cytosine-rich oligonucleotides induced by Hg(II) and Ag(I) ionsWei Ding, Mengze Xu, Hong Zhu and Haojun LiangEur. Phys. J. E, 36 9 (2013) 101DOI: https://doi.org/10.1140/epje/i2013-13101-5