Aleksandr Jakovlevič Chinčin (Aleksandr Yakovlevich Khinchin)Nikolaj Ivanovič Lobačevskij (Nikolai Ivanovich Lobachevsky)LiǎngqiānLiùshíqīWǔ (CN)Yìqiān wǔbǎiJohann Peter Gustav Lejeune DirichletÈr (CN)
Giovanni Girolamo Saccheri Adrien-Marie Legendre Michel Rolle Leopold Kronecker
Words in RussianThe correct pronunciation