@article{10_4153_CMB_2016_080_5,
     author = {Wang, Long and Castro-Gonzalez, Nieves and Chen, Jianlong},
     title = {Characterizations of {Outer} {Generalized} {Inverses}},
     journal = {Canadian mathematical bulletin},
     pages = {861--871},
     year = {2017},
     volume = {60},
     number = {4},
     doi = {10.4153/CMB-2016-080-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2016-080-5/}
}