@article{NUMA_1984__44_132914,
     author = {J.H. Wilkinson},
     title = {On {Neighbouring} {Matrices} with {Quadratic} {Elementary} {Divisors.}},
     journal = {Numerische Mathematik},
     pages = {1--22},
     year = {1984},
     volume = {44},
     zbl = {0545.65025},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1984__44_132914/}
}