@article{DMPS_2006_26_2_a0,
     author = {Neumann, Konrad and Zontek, Stefan},
     title = {On geometry of the set of admissible quadratic estimators of quadratic functions of normal parameters},
     journal = {Discussiones Mathematicae. Probability and Statistics},
     pages = {109--125},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {2006},
     zbl = {1128.62005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMPS_2006_26_2_a0/}
}