The problem is worse for cross-language plagiarism.
in our experiments we use two parallel corpora: Software, an en-eu translation memory of software manuals generously supplied by Elhuyar Fundazioa 5 ; and Consumer, a corpus extracted from a consumer oriented magazine that includes articles written in Spanish along with their Basque, Catalan, and Galician translations 6 (Alcázar, 2006).