Burai, Pál2019-10-082019-10-082019Results in Mathematics. -74 : 4 (2019), p. 1-9. -Results Math. - 1422-6383. - 1420-90121422-63831420-9012http://hdl.handle.net/2437/274014An Extension Theorem for Conditionally Additive Functions and Its Application for the Equality Problem of Quasi-Arithmetic Expressionsfolyóiratcikkopen access articlehttp://webpac.lib.unideb.hu:8082/ebib/CorvinaWeb?action=cclfind&resultview=long&ccltext=idno+BIBFORM081118TermészettudományokMatematika- és számítástudományokhttp://link.springer.com/10.1007/s00025-019-1064-1http://dx.doi.org/10.1007/s00025-019-1064-12019-10-0900047558580000185068736335