1Doz. Dr. Danail Bonchev,Verginia Kamenska,Dimitar Kamenski. Informationsgehalt chemischer Elemente[J] 1977,Monatshefte für Chemie(2):477~487
2D. Bonchev,D. Kamenski,V. Kamenska. Symmetry and information content of chemical structures[J] 1976,Bulletin of Mathematical Biology(2):119~133
3Abbe Mowshowitz. Entropy and the complexity of graphs: I. An index of the relative complexity of a graph[J] 1968,The Bulletin of Mathematical Biophysics(1):175~204
4Harold J. Morowitz. Some order-disorder considerations in living systems[J] 1955,The Bulletin of Mathematical Biophysics(2):81~86