The best constants for a double inequality in a triangle. Wu, Yu-Dong, Hu, Nu-Chun, Kuang, Wei-Ping (2009) JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
The Cayley–Menger determinant is irreducible for n ≥ 3 . D'Andrea, Carlos, Sombra, Martín (2005) Sibirskij Matematicheskij Zhurnal
The Hahn-Banach theorem implies the Banach-Tarski paradox Janusz Pawlikowski (1991) Fundamenta Mathematicae
The length of a lemmiscate. Elia, M., Angeli, M.T.Galizia (1984) Publications de l'Institut Mathématique. Nouvelle Série
The refinement and reverse of a geometric inequality. Wu, Yu-Lin (2009) JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
Tro- i četverokut u savezu sa aritmetičkimi i geometrijskimi progresijami Marko Mikšić (1876) Časopis pro pěstování mathematiky a fysiky