@article{10_37236_10839,
     author = {George Spahn},
     title = {Counting {Baxter} matrices},
     journal = {The electronic journal of combinatorics},
     year = {2023},
     volume = {30},
     number = {1},
     doi = {10.37236/10839},
     zbl = {1505.05017},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/10839/}
}