B. I. Argunov

• Hyperbolic functions
• Configuration theorems
• Configuration theorems [by] B.I. Argunov and L.A. Skornyakov
• Geometricheskie postroenii͡a︡ na ploskosti
• Geometrii︠a︡ int︠s︡isdentnostnykh struktur i different︠s︡ialʹnykh uravneniĭ