@article{GDZPPN001183222, title = {Spectral Methods with Sparse Matrices.}, journal = {Numerische Mathematik}, volume = {56}, year = {1989}, pages = {25-42}, zbl = {0661.65120}, url = {http://dml.mathdoc.fr/item/GDZPPN001183222} }
Heinrichs, Wilhelm. Spectral Methods with Sparse Matrices.. Numerische Mathematik, Tome 56 (1989) pp. 25-42. http://gdmltest.u-ga.fr/item/GDZPPN001183222/