Disk Disposal and Data Recovery
Data Recovery: The Current State-of-the-Art, ActionFront Data Recovery Labs, August 2005.
Secure Deletion of Data from Magnetic and Solid-State Memory, Peter Gutmann, Proceedings of the Sixth Usenix Security Symposium, 1996. 
Hard Drive Disposal: The Overlooked Confidentiality Exposure, FInancial Perspectives, IBM White Paper, November 2003.
Byteprints: A Tool to Gather Digital Evidence, Sriranjani Sitaraman, Srinivasan Krishnamurthy and S. Venkatesan, Proceedings of the International Conference on Information Technology (ITCC 2005), Las Vegas, Nevada, USA, April 4 - 6, 2005
Automatic Detection of Fake File Systems, Neil C. Rowe, International Conference on Intelligence Analysis Methods and Tools, McLean, Virginia, May 2005.
Kulesh Shanmugasundaram and Nasir Memon, Automatic Reassembly of Document Fragments via Context Based Statistical Models, http://citeseer.ist.psu.edu/shanmugasundaram03automatic.html