@article{article08deedb6,
title   = {A direct numerical method for quantifying regular and chaotic orbits},
author = {Awrejcewicz, J and Dzyubak, L and Grebogi, Celso},
year = {2004},
doi = {10.1016/s0960-0779(03)00062-6},
journal   = {Chaos, Solitons & Fractals}
}