@article{EUG_1989__23_a5,
     author = {George Dassios},
     title = {A {Matrix} {Approach} to the {Energy-Norm} {Bisection} in {Wave} {Motion}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}
},
     pages = {95-141},
     publisher = {mathdoc},
     volume = {23},
     year = {1989},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1989__23_a5/}
}