Matamala, A. R.; Estrada, E. Simplex optimization of generalized topological index (GTI-Simplex): A unified approach to optimize QSPR models. Journal of Physical Chemistry A 109, 2005, 9890-9895.

Matamala, A. R.; Estrada, E. Simplex optimization of generalized topological index (GTI-Simplex): A unified approach to optimize QSPR models. Journal of Physical Chemistry A 109, 2005, 9890-9895. [PDF]