![Nasrullah Memon](http://retractionwatch.files.wordpress.com/2013/01/nasrullah-memon.jpg)
A year ago, we wrote about eight retractions by Nasrullah Memon, an anti-terrorism researcher at the University of Southern Denmark, for plagiarism.
He seems to has another retraction, although that may be in dispute. As Debora Weber-Wulff reports, Memon’s chapter in Advanced Data Mining and Applications, which “constitutes the refereed proceedings of the Third International Conference on Advanced Data Mining and Applications, ADMA 2007, held in Harbin, China in August 2007,” is now marked “retracted.” Continue reading Anti-terrorism researcher notches ninth retraction — or does he?