Geodesic
On the metric space of all 2-nets of a space of nonpositive curvature
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 10 (2004), pp. 57-60.

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E. N. Sosov. On the metric space of all 2-nets of a space of nonpositive curvature. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 10 (2004), pp. 57-60. http://geodesic.mathdoc.fr/item/IVM_2004_10_a4/

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