D-Net

message Journal {

	optional string name = 1;

	optional string issnPrinted = 2;

	optional string issnOnline = 3;

	optional string issnLinking = 4;

	optional DataInfo dataInfo = 5;

}

// <concept id="egi::vo::alice" />

message Context {

	required string id = 1;

	optional DataInfo dataInfo = 2;

}

message Instance {

	optional Qualifier licence = 3;

	optional Qualifier instancetype = 4;

	optional KeyValue hostedby = 5;

	repeated string url = 9;

}

message ExternalReference {

	optional string sitename = 1;		// source

	optional string label = 2;			// title

	optional string url = 3;			// text()

	optional string description = 4;	// ?? not mapped yet ??

	optional Qualifier qualifier = 5;	// type

	optional string refidentifier = 6;	// site internal identifier

	optional string query = 7;			// maps the oaf:reference/@query attribute

	optional DataInfo dataInfo = 8;		// ExternalReferences might be also inferred

}