@article {50456,
	title = {Weakened well-posedness of a hyperbolic characteristic boundary value problem},
	journal = {Annales Polonici Mathematici},
	year = {2021},
	url = {https://www.impan.pl/en/publishing-house/journals-and-series/annales-polonici-mathematici/online/114328/weakened-well-posedness-of-a-hyperbolic-characteristic-boundary-value-problem},
	author = {Sihame Brahimi and Ahmed Zerrouk Mokrane}
}
