@article{10_21136_AM_1991_104450,
     author = {Varga, \v{S}tefan},
     title = {Quadratic estimations in mixed linear models},
     journal = {Applications of Mathematics},
     pages = {134--144},
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {1991},
     doi = {10.21136/AM.1991.104450},
     mrnumber = {1097697},
     zbl = {0742.62074},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1991.104450/}
}