@article{TMF_2012_173_3_a5,
     author = {A. V. Serghienko and V. A. Rubakov},
     title = {Phantom dark energy with tachyonic instability: {Metric} perturbations},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {441--452},
     publisher = {mathdoc},
     volume = {173},
     number = {3},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2012_173_3_a5/}
}