@article{ELA_2009__18__a19,
     author = {Rohn, Jiri},
     title = {Forty necessary and sufficient conditions for regularity of interval matrices: {A} survey},
     journal = {The electronic journal of linear algebra},
     pages = {500--512},
     publisher = {mathdoc},
     volume = {18},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2009__18__a19/}
}