1. Superhelical DNA;Wang;Trends Biochem. Sci.,1980
2. The twisted circular form of polyoma viral DNA;Vinograd,1965
3. Premelting of superhelical DNA: an expression for superhelical energy;Vologodskii;FEBS Lett.,1981
4. Free energy of supercoiling is enthalpy determined;Seidl,1984
5. Regulation of bacterial DNA supercoiling: plasmid linking numbers vary with growth temperature;Goldstein,1984