P. I. Romanovskiĭ

• Mathematical methods for engineers and technologists
• Ri͡a︡dy Furʹe
• Ri͡a︡dy Furʹe, teorii͡a︡ poli͡a︡, analiticheskie i spet͡s︡ialʹnye funkt͡s︡ii, preobrazovanie Laplasa