Formation of double-layers and super-solitons in a six-component cometary dusty plasmaEssam M. Abulwafa, Atalla M. Elhanbaly, Ahmed M. Bedeir and Abeer A. MahmoudEur. Phys. J. D, 76 7 (2022) 120DOI: https://doi.org/10.1140/epjd/s10053-022-00450-2