Vayshenker I, Jimenez J, Ugalde M P, Lehman J H
National Institute of Standards and Technology, Boulder, CO 80305, USA.
Laboratorio de Metrologia (LAMETRO), Instituto Costarricense de Electricidad (ICE), San Jose, Costa Rica.
J Res Natl Inst Stand Technol. 2019 Nov 1;124:1-5. doi: 10.6028/jres.124.030. eCollection 2019.