Training materials
Standard database or policy: Identifiers.org Registry
and Authors: Egon Willighagen or Fouad Yousif or Malachi Griffith or Nate Coraor or Sergio Martínez Cuesta
Standard database or policy: Identifiers.org Registry
and Authors: Egon Willighagen or Fouad Yousif or Malachi Griffith or Nate Coraor or Sergio Martínez Cuesta