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sgg joined the group SIG-03 Aperiodic Crystals 8 years, 4 months ago
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sig03webmaster joined the group SIG-03 Aperiodic Crystals 8 years, 6 months ago
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SIG03 Coordinator joined the group SIG-03 Aperiodic Crystals 8 years, 7 months ago
sgg joined the group SIG-03 Aperiodic Crystals 8 years, 4 months ago
sig03webmaster joined the group SIG-03 Aperiodic Crystals 8 years, 6 months ago
SIG03 Coordinator joined the group SIG-03 Aperiodic Crystals 8 years, 7 months ago