@article{ITA_2016__50_4_295_0,
     author = {Kostol\'anyi, Peter},
     title = {A pumping lemma for flip-pushdown languages},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {295--311},
     publisher = {EDP-Sciences},
     volume = {50},
     number = {4},
     year = {2016},
     doi = {10.1051/ita/2016003},
     mrnumber = {3614547},
     zbl = {1362.68147},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita/2016003/}
}