@article{IJAMCS_2002_12_2_a0,
     author = {Zerrik, E. H. and Bourray, H. and Boutoulout, A.},
     title = {Regional boundary obsevability: {A} numerical approach},
     journal = {International Journal of Applied Mathematics and Computer Science},
     pages = {143--151},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IJAMCS_2002_12_2_a0/}
}