TY - CHAP T1 - The International Commission on Glass (ICG) UR - https://doi.org/10.1002/9781118801017.ch9.12 PY - 2021/02/01 AU - Parker JM ED - DO - DOI: 10.1002/9781118801017.ch9.12 PB - Wiley SN - 9781118799420 SP - 1219 EP - 1229 Y2 - 2025/11/26 ER -