@article{10_4153_S0008439524000134,
     author = {Zentar, Oualid and Ziane, Mohamed and Horani, Mohammed Al},
     title = {Theoretical study of a $\varphi ${-Hilfer} fractional differential system in {Banach} spaces},
     journal = {Canadian mathematical bulletin},
     pages = {742--759},
     year = {2024},
     volume = {67},
     number = {3},
     doi = {10.4153/S0008439524000134},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439524000134/}
}