TY - RPRT TI - Perfluoropolyether--a vacuum pump fluid resistant to electron induced polymerization. AU - L Holland AU - L Laurenson AU - P N Baker AU - H J Davis PY - 1972 DO - 10.1038/238036b0 UR - https://pubmed.ncbi.nlm.nih.gov/12635267/ ID - 12635267 ER -