@article{10_4064_aa121_2_1,
     author = {Yahya Ould Hamidoune and Oriol Serra and Gilles Z\'emor},
     title = {On the critical pair theory in $\mathbb Z/p\mathbb Z$},
     journal = {Acta Arithmetica},
     pages = {99--115},
     publisher = {mathdoc},
     volume = {121},
     number = {2},
     year = {2006},
     doi = {10.4064/aa121-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa121-2-1/}
}