@article{10_37236_6660,
     author = {Darij Grinberg},
     title = {Double posets and the antipode of {QSym}},
     journal = {The electronic journal of combinatorics},
     year = {2017},
     volume = {24},
     number = {2},
     doi = {10.37236/6660},
     zbl = {1361.05137},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/6660/}
}