@article {200824,
	title = {New optical solitary wave solutions of Fokas-Lenells equation in optical fiber via Sine-Gordon expansion method},
	journal = {Alexandria Engineering Journal},
	volume = {59},
	year = {2020},
	pages = {1191{\textendash}1196},
	author = {Khalid K Ali and M. S. Osman and Mahmoud Abdel-Aty}
}
