@article{10_4153_CMB_1973_026_4,
     author = {Zischka, K. A.},
     title = {On {Approximations} to {Solutions} of {Nonlinear} {Integral} {Equations} of the {Urysohn} {Type}},
     journal = {Canadian mathematical bulletin},
     pages = {137--141},
     year = {1973},
     volume = {16},
     number = {1},
     doi = {10.4153/CMB-1973-026-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1973-026-4/}
}