ASIF, Sana Ullah; MAQSOOD, Asghari; TAHIR, Muhammad Nawaz. Configuration of Polymorphic Single Crystal Er2Si2O7 and Its Comparison with C-type & D-type Single Crystals. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 23, n. 2, p. 237–248, 2015. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/4166. Acesso em: 13 sep. 2025.