@article{NUMA_1989__54_3_133329,
     author = {D.S. Gilliam and J.R. Lund and C.F. Martin},
     title = {A {Discrete} {Sampling} {Inversion} {Scheme} for the {Heat} {Equation.}},
     journal = {Numerische Mathematik},
     pages = {493--506},
     publisher = {mathdoc},
     volume = {54},
     number = {3},
     year = {1989},
     zbl = {0646.65085},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1989__54_3_133329/}
}