@article{DMTCS_2017_19_4_a2,
     author = {Czerwi\'nski, Wojciech and Martens, Wim and van Rooijen, Lorijn and Zeitoun, Marc and Zetzsche, Georg},
     title = {A {Characterization} for {Decidable} {Separability} by {Piecewise} {Testable} {Languages}},
     journal = {Discrete mathematics & theoretical computer science},
     publisher = {mathdoc},
     volume = {19},
     number = {4},
     year = {2017-2018},
     doi = {10.23638/DMTCS-19-4-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.23638/DMTCS-19-4-1/}
}