@article{01791679,
title = {An application of matrix calculus to an engineering problem.},
journal = {Divulgaciones Matem\'aticas},
volume = {9},
year = {2001},
pages = {195-203},
zbl = {1003.15007},
language = {en},
url = {http://dml.mathdoc.fr/item/01791679}
}
Almeida Benítez, P.R.; Márquez Rodríguez, I.; Franco Brañas, J.R. An application of matrix calculus to an engineering problem.. Divulgaciones Matemáticas, Tome 9 (2001) pp. 195-203. http://gdmltest.u-ga.fr/item/01791679/