A National Center for Science Education (NCSE) cikke Carl R. Woese haláláról
nih.gov
pubmed.ncbi.nlm.nih.gov
Woese C, Fox G (1977). „Phylogenetic structure of the prokaryotic domain: the primary kingdoms”. Proc Natl Acad Sci U S A74 (11), 5088–90. o. PMID270744.