@article{DMTCS_2005_special_250_a32,
     author = {Pikhurko, Oleg and Spencer, Joel and Verbitsky, Oleg},
     title = {Decomposable graphs and definitions with no quantifier alternation},
     journal = {Discrete mathematics & theoretical computer science},
     publisher = {mathdoc},
     volume = {DMTCS Proceedings vol. AE, European Conference on Combinatorics, Graph Theory and Applications (EuroComb '05)},
     year = {2005},
     doi = {10.46298/dmtcs.3423},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.3423/}
}