@article{MZM_2007_81_3_a8,
     author = {Yu. V. Muranov and D. Repov\v{s} and M. Cencelj},
     title = {The $\pi$-$\pi${-Theorem} for {Manifold} {Pairs}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {405--416},
     publisher = {mathdoc},
     volume = {81},
     number = {3},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2007_81_3_a8/}
}