Journal of Geometry and Physics
Journal of Geometry and Physics > 1996 > 20 > 4 > 329-348
Journal of Geometry and Physics > 1996 > 20 > 4 > 404-406
Journal of Geometry and Physics > 1996 > 20 > 4 > 393-403
Journal of Geometry and Physics > 1996 > 20 > 4 > 371-392
Journal of Geometry and Physics > 1996 > 20 > 4 > 349-370
Journal of Geometry and Physics > 1996 > 20 > 4 > 305-317
Journal of Geometry and Physics > 1996 > 20 > 4 > 318-328