Long-range modulated wave patterns in certain nonlinear saturation alpha-helical proteins S. Issa, I. Maïna, C. B. Tabi, A. Mohamadou, H. P. Ekobena Fouda and T. C. Kofané Eur. Phys. J. Plus, 136 9 (2021) 900 Published online: 02 September 2021 DOI: 10.1140/epjp/s13360-021-01898-8