59th International Symposium
on Functional Equations June 18-25, 2023, Hajdúszoboszló, Hungary Dedicated to Zoltán Daróczy on his 85th birthday anniversary
59th International Symposium
on Functional Equations June 18-25, 2023, Hajdúszoboszló, Hungary Dedicated to Zoltán Daróczy on his 85th birthday anniversary