Journal of Geometry and Physics
Journal of Geometry and Physics > 1998 > 27 > 1-2 > 65-78
Journal of Geometry and Physics > 1998 > 27 > 1-2 > 79-98
Journal of Geometry and Physics > 1998 > 27 > 1-2 > 99-112
Journal of Geometry and Physics > 1998 > 27 > 1-2 > 1-29
Journal of Geometry and Physics > 1998 > 27 > 1-2 > 30-48
Journal of Geometry and Physics > 1998 > 27 > 1-2 > 49-64
Journal of Geometry and Physics > 1998 > 27 > 1-2 > 113-153