E. A. Thompson N. H. Chapman Haplotype Blocks in Small Populations. 74-83 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2983&spage=74 2002 conf/recomb/2002snp Computational Methods for SNPs and Haplotype Inference db/conf/recomb/snp2002.html#ThompsonC02