@article{MS2_1959__7_165701,
     author = {S.O. Asplund},
     title = {Finite {Boundary} {Value} {Problems} {Solved} by {Green's} {Matrix.}},
     journal = {Mathematica Scandinavica},
     pages = {49--56},
     publisher = {mathdoc},
     volume = {7},
     year = {1959},
     zbl = {0093.31101},
     url = {http://geodesic.mathdoc.fr/item/MS2_1959__7_165701/}
}