@article {148813,
	title = {Waveguides of two-soliton solutions for the coupled KdV equations with variable coefficients in long-distance communication systems},
	journal = {Indian J Phys},
	volume = {91},
	year = {2017},
	pages = {671{\textendash}675},
	author = {H.I. Abdel-Gawad and Tantawy, M.}
}
