TY - CONF AU - Ryna Marinenko AU - Stefan Leigh C2 - Proceedings: Microscopy and Microanalysis , Atlanta, GA DA - 1998-09-01 LA - en M1 - 4 PB - Proceedings: Microscopy and Microanalysis , Atlanta, GA PY - 1998 TI - Electron Probe Evaluation of Heterogeneity in the Certification of NIST Standard Reference Materials for Microanalysis ER -