@article{1177729837,
author = {Koopmans, T. C. and Reiersol, O.},
title = {The Identification of Structural Characteristics},
journal = {Ann. Math. Statist.},
volume = {21},
number = {4},
year = {1950},
pages = { 165-181},
language = {en},
url = {http://dml.mathdoc.fr/item/1177729837}
}
Koopmans, T. C.; Reiersol, O. The Identification of Structural Characteristics. Ann. Math. Statist., Tome 21 (1950) no. 4, pp. 165-181. http://gdmltest.u-ga.fr/item/1177729837/