Changjiang Bu, Min Li, Kuize Zhang, Lan Zheng. Group inverse for the block matrices with an invertible subblock. Applied Mathematics and Computation, 215(1):132-139, 2009. [doi]
@article{BuLZZ09,
title = {Group inverse for the block matrices with an invertible subblock},
author = {Changjiang Bu and Min Li and Kuize Zhang and Lan Zheng},
year = {2009},
doi = {10.1016/j.amc.2009.04.054},
url = {http://dx.doi.org/10.1016/j.amc.2009.04.054},
researchr = {https://researchr.org/publication/BuLZZ09},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {215},
number = {1},
pages = {132-139},
}