The guidelines of the standard are applicable in connection with all parts of DIN 31631 for entries to each documentary reference unit. Recommentations are given for the unique marking of relations and entries according to the complexity of data structures.
DIN 31631-5:1988 history
1988DIN 31631-5:1988-09 Data element catalogue for bibliographic data; handling of data categories with one entry or more entries in data formats
1988DIN 31631-5:1988 Data element catalogue for bibliographic data; handling of data categories with one entry or more entries in data formats