@article{RCM_1985__19_181759,
     author = {Julio E. Guacaneme},
     title = {Weak {Approximation} {Of} {Minimal} {Norm} {Solutions} {Of} {First} {Kind} {Equations} {By} {Tikhonov's} {Method.}},
     journal = {Revista colombiana de matematicas},
     pages = {263--276},
     publisher = {mathdoc},
     volume = {19},
     year = {1985},
     zbl = {0616.65060},
     url = {http://geodesic.mathdoc.fr/item/RCM_1985__19_181759/}
}