@article{GFA_1996__6_1_58227,
     author = {D. Kazhdan and S. Gelfand},
     title = {Invariants of {Three-dimensional} {Manifolds.}},
     journal = {Geometric and functional analysis},
     pages = {268--300},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1996},
     zbl = {0870.57017},
     url = {http://geodesic.mathdoc.fr/item/GFA_1996__6_1_58227/}
}