Control Identifier (Mandatory)

Unique identifier assigned by the information provider (the GELOS Record Source) to distinguish a record
from all other records on a particular GELOS server.

**GILS ELEMENT: Control Identifier
**DUBLIN CORE ELEMENT: Resource identifter

Original control identifier (Optionat)

A GELOS record may have been created by copying and modifying an existing record from another locator
system. This field provides a unique reference to the original record and the name of the originating server.

**GILS ELEMENT: Original Control Identifier
**DUBLIN CORE ELEMENTS: Source ?

GELOS Record Source (Mandatory)

This element identifies the organisation that created the GELOS locator record and is responsible for its
maintenance. It is required only when this information is different from that supplied in the Contributor and/or
Distributor elements. The content of the element can be plain text or structured into the following sub-elements:

Name
Organisation
Street address
City
State or province
Zip or postal code
Country
Network address
Telephone
Fax

**GILS ELEMENT: Record Source. This element may be left unstructured, or it may be structured into any
of the sub-elements weIIKnown; name; organisation; street-address; city; state-or-province; zip-or-
postal-code; country; network-address; telephone; fax.

Language of record (Optional)

Provides the name of the language of the GELOS record and its ISO 639 standardised code.

**GILS ELEMENT: Language of Record

Date of creation or last modification of record (Mandatory)

This element identifies date on which the GELOS record was created or last modifed.

**GILS ELEMENT: Date of last Modification