Homotactic enthalpic pairwise interactions of four deoxynucleosides (dU, dC, dG, dT) in dimethylformamide (DMF) + water mixtures at 298.15 K Jia, Z.; Hu, X.; Cheng, W.; Liu, J.; Guo, A.; Fang, G.; Thermochimica Acta 2012, 549, 148-157