What is the difference between a1, a2 and a3 journals?

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Emad Kamil Hussein

Sorry Sir, Do you mean Q1, Q2, Q3, .... journals? with their specific colors?

Regards, Emad

Moa Megersa

No Sir,

Thank you very much!

Rossitsa Chobanova

Dear Sir,

Your question concerns one of the best developed databases - WoS. Q1(a1), Q2(a2) Q3(a3) concerns Web of Science.

See: https://researchassessment.fbk.eu/quartile_score