TY - RPRT TI - Phylogenetic inference under the pure drift model. AU - S Xu AU - W R Atchley AU - W M Fitch PY - 1994 DO - 10.1093/oxfordjournals.molbev.a040175 UR - https://pubmed.ncbi.nlm.nih.gov/7815932/ ID - 7815932 ER -