00518nam a22001817a 450000500170000002000180001710000200003524500300005526000400008530000120012549000360013750000430017365000240021665000220024065000210026270000260028370000270030920260702152754.0  a9789349750081  aBurago, Dmitri   aCourse in metric geometry  aTelanganabUniversities pressc2026  axii+415  aGraduate studies in mathematics  aGraduate studies in mathematics vol 33  aCaratheodory metric  aRiemannian metric  aHyperbolic plane  aBurago, Yuri (author)  aIvanov,Sergei (author)