Brovarets, O.O. and Hovorun, D.M. 2019. How do Long Improper Purine-Purine Pairs of DNA Bases Adapt the Enzymatically Competent Conformation? Structural Mechanism and Its Quantum-Mechanical Grounds. Ukrainian Journal of Physics. 60, 8 (Jan. 2019), 748. DOI:https://doi.org/10.15407/ujpe60.08.0748.