Training materials
Standard database or policy: Identifiers.org Registry
and Authors: Alex Ostrovsky or Egon Willighagen or Jan Slifka or Korbinian Bösl or Martin Morgan or Mehmet Tekman
Standard database or policy: Identifiers.org Registry
and Authors: Alex Ostrovsky or Egon Willighagen or Jan Slifka or Korbinian Bösl or Martin Morgan or Mehmet Tekman