@article{DMPS_2005_25_1_a1,
     author = {Gro{\ss}, J\"urgen and Puntanen, Simo},
     title = {Extensions of the {Frisch-Waugh-Lovell} {Theorem}},
     journal = {Discussiones Mathematicae. Probability and Statistics},
     pages = {39--49},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {2005},
     zbl = {1134.62302},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMPS_2005_25_1_a1/}
}