@article{AA_2004_16_4_a6,
     author = {N. N. Kosovskii},
     title = {Gluing with branching for {Riemannian} manifolds of curvature $\leq\kappa$},
     journal = {Algebra i analiz},
     pages = {132--145},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2004_16_4_a6/}
}