TY - RPRT TI - Certification of Standard Reference Material® 3461 Reference Cantilevers for AFM Spring Constant Calibration AU - Gates, Richard S PY - 2023 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 260-227-upd1 DO - 10.6028/NIST.SP.260-227-upd1 ER -