?url_ver=Z39.88-2004&rft_id=MTMT%3A31957366+10.1007%2Fs00454-021-00291-7&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=+Fodor+Ferenc&rft.aulast=Fodor&rft.aufirst=Ferenc&rft.issue=3&rft.atitle=Perimeter+Approximation+of+Convex+Discs+in+the+Hyperbolic+Plane+and+on+the+Sphere&rft.issn=0179-5376&rft.pages=1190-1201&rft.date=2021&rft.title=DISCRETE+AND+COMPUTATIONAL+GEOMETRY&rft.volume=66&rft.genre=article