@article{1183501633,
author = {Eckart, Carl and Young, Gale},
title = {A principal axis transformation for non-hermitian matrices},
journal = {Bull. Amer. Math. Soc.},
volume = {45},
number = {11},
year = {1939},
pages = { 118-121},
language = {en},
url = {http://dml.mathdoc.fr/item/1183501633}
}
Eckart, Carl; Young, Gale. A principal axis transformation for non-hermitian matrices. Bull. Amer. Math. Soc., Tome 45 (1939) no. 11, pp. 118-121. http://gdmltest.u-ga.fr/item/1183501633/