Inverses of Matrices $\{a_{ij}\}$ which Satisfy $a_{ij} = 0$ for $j > i+p$.

E. Asplund, “Inverses of Matrices $\{a_{ij}\}$ which Satisfy $a_{ij} = 0$ for $j > i+p$”., Math. Scand., vol. 7, pp. 57–60, Dec. 1959, doi: 10.7146/math.scand.a-10561.