TY - RPRT TI - Electronic structure approach for complex silicas. AU - AA Demkov AU - J Ortega AU - OF Sankey AU - MP Grumbach PY - 1995 DO - 10.1103/physrevb.52.1618 UR - https://pubmed.ncbi.nlm.nih.gov/9981224/ ID - 9981224 ER -