@article{ITA_2014__48_3_341_0,
     author = {Mas\'akov\'a, Z. and V\'avra, T.},
     title = {Integers in number systems with positive and negative quadratic {Pisot} base},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {341--367},
     publisher = {EDP-Sciences},
     volume = {48},
     number = {3},
     year = {2014},
     doi = {10.1051/ita/2014013},
     mrnumber = {3302492},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita/2014013/}
}