@article{10_4064_ap83_1_4,
     author = {F. Broglia and A. Elkhadiri and F. Pieroni},
     title = {Formal relations between quasianalytic functions
 of some fixed class},
     journal = {Annales Polonici Mathematici},
     pages = {35--40},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {2004},
     doi = {10.4064/ap83-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap83-1-4/}
}