@article{SMJ2_2008_34_4_a3,
     author = {Ezzaldine, Hayssam and Kostov, Vladimir Petrov},
     title = {Even and {Old} {Overdetermined} {Strata} for {Degree} 6 {Hyperbolic} {Polynomials}},
     journal = {Serdica Mathematical Journal},
     pages = {743--770},
     publisher = {mathdoc},
     volume = {34},
     number = {4},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2008_34_4_a3/}
}