TY - RPRT TI - Archaea: narrowing the gap between prokaryotes and eukaryotes. AU - P J Keeling AU - W F Doolittle PY - 1995 DO - 10.1073/pnas.92.13.5761 UR - https://pubmed.ncbi.nlm.nih.gov/7597025/ ID - 7597025 ER -