@article{CLTM_1979_1979_1_a5,
     author = {D{\'\i}az, J. B. and Ram, R. B.},
     title = {Unicidad de problemas de {Dirichlet,} {Neumann} y valores de contorno mixtos para las ecuaciones de {Laplace} y de {Poisson} para un rect\'angulo.},
     journal = {Collectanea mathematica},
     pages = {37-54},
     publisher = {mathdoc},
     volume = {30},
     number = {1},
     year = {1979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1979_1979_1_a5/}
}