==135 CODED DATA FIELDCoded data field: ELECTRONIC RESOURCESElectronic resources== ==Field Definition== This field contains coded data relating to electronic resources and may be used both in ''UNIMARCbibliographic record '' or in ''UNIMARC holdings record'', according to the usage of the bibliographicagency. If the document exists only as an electronic resource, field [[135 ]] of ''UNIMARC bibliographic format''

 The use of this field in the ''UNIMARC holdings format '' is according to the usage of the same field inthe ''UNIMARC bibliographic format''. ==Related Fields== * [[hold/375 NOTES PERTAINING TO COPY AND VERSION IDENTIFICATION|375 Notes pertaining to copy and version identification]]