Haddad, Darine; Seifert, Frank; Chao, Leon; Possolo, Antonio; Newell, David B; Pratt, Jon R; Williams, Carl J; Schlamminger, Stephan (2017). “Measurement of the Planck constant at the National Institute of Standards and Technology from 2015 to 2017”. Metrologia (IOP Publishing) 54 (5). doi:10.1088/1681-7575/aa7bf2. ISSN0026-1394. LCCN65-9907. OCLC48198209.
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Haddad, Darine; Seifert, Frank; Chao, Leon; Possolo, Antonio; Newell, David B; Pratt, Jon R; Williams, Carl J; Schlamminger, Stephan (2017). “Measurement of the Planck constant at the National Institute of Standards and Technology from 2015 to 2017”. Metrologia (IOP Publishing) 54 (5). doi:10.1088/1681-7575/aa7bf2. ISSN0026-1394. LCCN65-9907. OCLC48198209.
Haddad, Darine; Seifert, Frank; Chao, Leon; Possolo, Antonio; Newell, David B; Pratt, Jon R; Williams, Carl J; Schlamminger, Stephan (2017). “Measurement of the Planck constant at the National Institute of Standards and Technology from 2015 to 2017”. Metrologia (IOP Publishing) 54 (5). doi:10.1088/1681-7575/aa7bf2. ISSN0026-1394. LCCN65-9907. OCLC48198209.
Haddad, Darine; Seifert, Frank; Chao, Leon; Possolo, Antonio; Newell, David B; Pratt, Jon R; Williams, Carl J; Schlamminger, Stephan (2017). “Measurement of the Planck constant at the National Institute of Standards and Technology from 2015 to 2017”. Metrologia (IOP Publishing) 54 (5). doi:10.1088/1681-7575/aa7bf2. ISSN0026-1394. LCCN65-9907. OCLC48198209.
Haddad, Darine; Seifert, Frank; Chao, Leon; Possolo, Antonio; Newell, David B; Pratt, Jon R; Williams, Carl J; Schlamminger, Stephan (2017). “Measurement of the Planck constant at the National Institute of Standards and Technology from 2015 to 2017”. Metrologia (IOP Publishing) 54 (5). doi:10.1088/1681-7575/aa7bf2. ISSN0026-1394. LCCN65-9907. OCLC48198209.