@article{M2AN_1982__16_2_129_0,
     author = {Levin, David},
     title = {Near-best approximations to the solution of {Fredholm} integral equation of the second kind},
     journal = {RAIRO. Analyse num\'erique},
     pages = {129--141},
     publisher = {Centrale des revues, Dunod-Gauthier-Villars},
     address = {Montreuil},
     volume = {16},
     number = {2},
     year = {1982},
     mrnumber = {661452},
     zbl = {0483.65073},
     language = {en},
     url = {http://www.numdam.org/item/M2AN_1982__16_2_129_0/}
}