@article{10_2298_FIL2009015G,
     author = {Iva Golubi\'c and Janko Marovt},
     title = {Preservers of partial orders on the set of all variance-covariance matrices},
     journal = {Filomat},
     pages = {3015 },
     year = {2020},
     volume = {34},
     number = {9},
     doi = {10.2298/FIL2009015G},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2009015G/}
}