@article{ERAAMS_2001_07_a10,
     author = {Krat, S.},
     title = {On pairs of metrics invariant under a cocompact action of a group},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {79--86},
     publisher = {mathdoc},
     volume = {07},
     year = {2001},
     doi = {10.1090/S1079-6762-01-00097-X},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-01-00097-X/}
}