1. All valence-electrons calculations of the biological purines and pyrimidines

   • C. Giessner-Prettre
   • A. Pullman

   Commentationes 01 January 1968 Pages: 279 - 287

2. LCAO-MO-SCF-CI semi-empirical π-electron calculations on heteroaromatic systems

   • D. R. Forshey
   • G. W. Pukanic
   • J. B. Greenshields

   Commentationes 01 January 1968 Pages: 288 - 295

3. Application of variation perturbation theory to some one-center problems of quantum chemistry

   • Karl Heinz Hanseen

   Commentationes 01 January 1968 Pages: 296 - 302

4. Nonlinear parameters in the Least-Squares Local Energy Method

   • Donald K. Harriss
   • Ronald K. Roubal

   Commentationes 01 January 1968 Pages: 303 - 311

5. Semiempirical calculations on triplet and doublet states

   • G. Wagniére

   Commentationes 01 January 1968 Pages: 312 - 323

6. Simple accurate two-centre wave-functions for homonuclear diatomic molecules

   • M. Cohen
   • Brenda H. Dorrell
   • R. P. McEachran

   Relationes 01 January 1968 Pages: 324 - 329

7. An extension of the least squares local energy method to perturbed systems

   • D. W. Davies

   Relationes 01 January 1968 Pages: 330 - 332

8. Free valence indices of carbon in heterocyclic compounds

   • J. N. Herak
   • N. Trinajstić

   Relationes 01 January 1968 Pages: 333 - 335

9. Nichtnachbar-Matrixelemente in der HMO-Methode

   • D. Leupold

   Annotationes 01 January 1968 Pages: 336 - 338

10. Nichtnachbar-Matrixelemente in der HMO-Methode

    • Martin Klessinger

    Annotationes 01 January 1968 Pages: 339 - 343

11. Erratum zu: Modellrechnungen zur symmetrischen vierzentrenbindung. II

    • P. Kadura

    Erratum 01 January 1968 Pages: 344 - 344