@article{CRMATH_2021__359_2_205_0,
     author = {Carrillo, Sergio A. and Hurtado, Miguel},
     title = {Appell and {Sheffer} sequences: on their characterizations through functionals and examples},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {205--217},
     year = {2021},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {359},
     number = {2},
     doi = {10.5802/crmath.172},
     language = {en},
     url = {https://www.numdam.org/articles/10.5802/crmath.172/}
}