@article{PORMA_1982__41_1-4_115503,
     author = {Silva, M. Rog\'erio de J. da},
     title = {Lacalgebra versions of {Lanczos} tau method for the numerical solution of differential equations},
     journal = {Portugaliae mathematica},
     pages = {295--316},
     publisher = {mathdoc},
     volume = {41},
     number = {1-4},
     year = {1982},
     mrnumber = {0766859},
     zbl = {0545.65053},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115503/}
}