@article{DMTCS_2013_special_264_a80,
     author = {Guay-Paquet, Mathieu and Morales, Alejandro H. and Rowland, Eric},
     title = {Structure and enumeration of $(3+1)$-free posets (extended abstract)},
     journal = {Discrete mathematics & theoretical computer science},
     publisher = {mathdoc},
     volume = {DMTCS Proceedings vol. AS, 25th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2013)},
     year = {2013},
     doi = {10.46298/dmtcs.12809},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.12809/}
}