@article{NUMA_1973__21_132228,
     author = {B.N. Parlett},
     title = {Presentation geometrique des methodes de calcul des valeurs propres.},
     journal = {Numerische Mathematik},
     pages = {223--233},
     year = {1973},
     volume = {21},
     zbl = {0255.65020},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1973__21_132228/}
}