Kóczy, László Á.; Strobel, Martin - Keleti Károly Gazdasági Kar, Óbudai Egyetem - 2007
We show that the invariant method (Pinski and Narin, 1976), recently axiomatised by Palacios-Huerta and Volij (2004), and used to quality-rank academic journals is subject to manipulation: a journal can boost its performance by making additional citations to other journals.