@incollection{BelCavCetGraMar:03,
  volume = {2597},
  title = {An application of dynamic {P} systems generating context-free
           languages},
  year = {2003},
  booktitle = {Membrane computing},
  pages = {90--106},
  publisher = {Springer},
  address = {Berlin},
  author = {Bel Enguix, Gemma and Cavaliere, Matteo and Ceterchi, Rodica and
            Gramatovici, Radu and Mart{\'{\i}}n-Vide, Carlos},
  series = {Lecture Notes in Comput. Sci.},
}