JournalsemVol. 76, No. 3Elemente der MathematikVolume 76, Number 3, 2021DOI: 10.4171/em | ISSN: 0013-6018 | eISSN: 1420-8962A natural construction for the real numbersNorbert A’Campopp. 89–105Two remarkable triangles of a triangle and their circumcirclesSándor Nagydobai KissBálint Bírópp. 106–114A matrix viewpoint for various algebraic extensionsGene AbramsPham Ngoc Ánhpp. 115–131Aufgabenpp. 132–136
Two remarkable triangles of a triangle and their circumcirclesSándor Nagydobai KissBálint Bírópp. 106–114
