@article{GDZPPN00234839X,
title = {Matrix Theorems for Partial Differential and Difference Equations.},
journal = {Mathematica Scandinavica},
volume = {18},
year = {1966},
pages = {113-133},
zbl = {0144.13404},
url = {http://dml.mathdoc.fr/item/GDZPPN00234839X}
}
Miller, John; Strang, Gilbert. Matrix Theorems for Partial Differential and Difference Equations.. Mathematica Scandinavica, Tome 18 (1966) pp. 113-133. http://gdmltest.u-ga.fr/item/GDZPPN00234839X/