@article{JLT_1998_8_2_a6,
     author = {P. W. Michor and T. S. Ratiu},
     title = {On the {Geometry} of the {Virasoro-Bott} {Group}},
     journal = {Journal of Lie theory},
     pages = {293--31},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1998},
     url = {http://geodesic.mathdoc.fr/item/JLT_1998_8_2_a6/}
}