@article{NUMA_1971__18_132123,
     author = {R. Weiss and R.S. Anderssen},
     title = {A {Product} {Integration} {Method} for a {Class} of {Singular} {First} {Kind} {Voltera} {Equations.}},
     journal = {Numerische Mathematik},
     pages = {442--456},
     publisher = {mathdoc},
     volume = {18},
     year = {1971},
     zbl = {0228.65086},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1971__18_132123/}
}