Xavier Mary, Pedro Patrício. The inverse along a lower triangular matrix. Applied Mathematics and Computation, 219(3):886-891, 2012. [doi]
@article{MaryP12,
title = {The inverse along a lower triangular matrix},
author = {Xavier Mary and Pedro Patrício},
year = {2012},
doi = {10.1016/j.amc.2012.06.060},
url = {http://dx.doi.org/10.1016/j.amc.2012.06.060},
researchr = {https://researchr.org/publication/MaryP12},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {219},
number = {3},
pages = {886-891},
}