@article{ZNSL_1995_231_a9,
     author = {O. A. Ivanov and N. Yu. Netsvetaev},
     title = {The intersection form of the result of gluing manifolds with degenerate intersection forms},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {169--179},
     publisher = {mathdoc},
     volume = {231},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1995_231_a9/}
}