The impact factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
Takashi Muramatsu, Yoshinobu Onuma, Yao-Jun Zhang, Christos V. Bourantas, Alexander Kharlamov, Roberto Diletti, Vasim Farooq, Bill D. Gogas, Scot Garg, Hector M. García-García, Yukio Ozaki, Patrick W. Serruys