Email Address * *
Name
Subject *
Message * Obobshchennye Funkt︠s︡ionalʹno-Invariantnye Reshenii︠a︡ i Ėkvivalentnye Sistemy Uravneniĭ Matematicheskoĭ Fiziki Analiticheskie i Chislennye Reshenii︠a︡ Li︠u︡bykh Uravneniĭ i Sistem 2-Go Pori︠a︡dka V Chastnykh Proizvodnykh - 5020313971 - 9785020313972