@article{RMC_2009_2009_1_a0,
     author = {Massengo Mophou, Gis\`ele and  Puel, Jean-Pierre},
     title = {Boundary sentinels with given sensitivity.},
     journal = {Revista matem\'atica complutense},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RMC_2009_2009_1_a0/}
}