relation: http://publicatio.bibl.u-szeged.hu/15938/ title: Isoptic characterization of spheres creator: Kurusa Árpád creator: Ódor Tibor date: 2015 type: Folyóiratcikk type: PeerReviewed format: text identifier: http://publicatio.bibl.u-szeged.hu/15938/1/isomask.pdf identifier: Kurusa Árpád; Ódor Tibor: Isoptic characterization of spheres. JOURNAL OF GEOMETRY, 106 (1). pp. 63-73. ISSN 0047-2468 (2015) identifier: doi:10.1007/s00022-014-0232-4 relation: 2595933 language: eng