joke @joke Active 6 years, 3 months ago ActivityProfileGroups 3 PersonalMentionsFavoritesGroups Show: — Everything — Updates New Groups Group Memberships Group Updates joke joined the group SIG-12 Crystallography of Functional Materials 6 years, 3 months ago SIG-12 Crystallography of Functional Materials View group joke joined the group SIG-04 Electron Crystallography 6 years, 3 months ago SIG-04 Electron Crystallography View group