TY - CONF AU - Darine El AU - Frank Seifert AU - Stephan Schlamminger AU - Leon Chao AU - David Newell AU - Jon Pratt C2 - CPEM 2014 Digest, Rio de Janeiro, -1 DA - 2014-08-24 LA - en PB - CPEM 2014 Digest, Rio de Janeiro, -1 PY - 2014 TI - Heterodyne interferometer with subnanometer accuracy UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915347 ER -