@article{ZNSL_2003_299_a0,
     author = {P. D. Andreev},
     title = {Recovering the metric of a~$CAT(0)$-space by a~diagonal tube},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--29},
     year = {2003},
     volume = {299},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2003_299_a0/}
}