The sum (10-13) of the IDN, VHS, HS and MS document pairs found by the best full and selective fingerprint methods mentioned in the last paragraph is the same sum of the IDN, VHS, HS and MS document pairs found by the CA and CR methods.
usually, selfplagiarism is considered to be a serious ethical problem in cases where a publication needs to contain an important portion of a new material, such as in academic papers (Wikipedia, 2010).