TY - RPRT TI - Certification of standard reference material 2365 BK virus DNA quantitative standard AU - Cleveland, Megan H AU - Farkas, Natalia AU - Kiesler, Kevin M AU - Toman, Blaza AU - Vallone, Peter M PY - 2018 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-191 DO - 10.6028/NIST.SP.260-191 ER -