@article{10_37236_6115,
     author = {Michael Albert and V{\'\i}t Jel{\'\i}nek},
     title = {Unsplittable classes of separable permutations},
     journal = {The electronic journal of combinatorics},
     year = {2016},
     volume = {23},
     number = {2},
     doi = {10.37236/6115},
     zbl = {1339.05002},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/6115/}
}