@article{EXMATH_1998_1998_1_a26,
     author = {Fern\'andez Mu\~niz, Jos\'e L. and Guzm\'an Ovando, Mar{\'\i}a E.},
     title = {Ret{\'\i}culos de {Riesz} y operadores casi positivos.},
     journal = {Extracta mathematicae},
     pages = {303-312},
     year = {1998},
     volume = {13},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EXMATH_1998_1998_1_a26/}
}