@article{10_37236_7686,
     author = {Miguel A. M\'endez and Rafael S\'anchez Lamoneda},
     title = {Monops, monoids and operads: the combinatorics of {Sheffer} polynomials},
     journal = {The electronic journal of combinatorics},
     year = {2018},
     volume = {25},
     number = {3},
     doi = {10.37236/7686},
     zbl = {1393.05063},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/7686/}
}