APA (7th ed.) Citation

Tabachnikov, S. (2025). A Four-Point Theorem: Yet Another Variation on an Old Theme: A Four-Point Theorem: Yet Another Variation. The Mathematical intelligencer, 47(2), 171-175. https://doi.org/10.1007/s00283-024-10399-2

Chicago Style (17th ed.) Citation

Tabachnikov, Serge. "A Four-Point Theorem: Yet Another Variation on an Old Theme: A Four-Point Theorem: Yet Another Variation." The Mathematical Intelligencer 47, no. 2 (2025): 171-175. https://doi.org/10.1007/s00283-024-10399-2.

MLA (9th ed.) Citation

Tabachnikov, Serge. "A Four-Point Theorem: Yet Another Variation on an Old Theme: A Four-Point Theorem: Yet Another Variation." The Mathematical Intelligencer, vol. 47, no. 2, 2025, pp. 171-175, https://doi.org/10.1007/s00283-024-10399-2.