id	domain	url
ejpam-4316	doi.org	https://doi.org/10.29020/nybg.ejpam.v15i2.4316
ejpam-4316	www.ejpam.com	https://www.ejpam.com
ejpam-4316	mathworld.wolfram.com	https://mathworld.wolfram.com/wienerindex.html
ejpam-4316	mathworld.wolfram.com	https://mathworld.wolfram.com/hararyindex.html