Collapse and hybridization of RNA: View from replica technique approach Y. Sh. Mamasakhlisov, S. Bellucci, Shura Hayryan, H. Caturyan, Z. Grigoryan and Chin-Kun Hu Eur. Phys. J. E, 38 9 (2015) 100 Published online: 21 September 2015 DOI: 10.1140/epje/i2015-15100-x