%0 Journal Article %A GrzÄ…dziel, Mariusz %A Michalski, Andrzej %T A note on the existence of the maximum likelihood estimate in variance components models %J Discussiones Mathematicae. Probability and Statistics %D 2014 %P 159-167 %V 34 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMPS_2014_34_1-2_a10/ %G en %F DMPS_2014_34_1-2_a10