Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1993__43_5_a7, author = {Kub\'a\v{c}ek, Lubom{\'\i}r}, title = {Two stage linear model with constraints}, journal = {Mathematica slovaca}, pages = {643--658}, publisher = {mathdoc}, volume = {43}, number = {5}, year = {1993}, mrnumber = {1273716}, zbl = {0793.62036}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1993__43_5_a7/} }
Kubáček, Lubomír. Two stage linear model with constraints. Mathematica slovaca, Tome 43 (1993) no. 5, pp. 643-658. http://geodesic.mathdoc.fr/item/MASLO_1993__43_5_a7/