Features of the use of sources of biographical information in the process of filling the UNBA.

The article highlights the peculiarities of filling source database "Ukrainian biographical sources", which is an autonomous part of Ukrainian national biographical archive. Analyzed elements of the database "Sources" arrangement which creates the possibility of reliable guidance in the circle of sources, automatically search for their personalities, identification of sources that need to attract additional, which is very important for the further content of Ukrainian national biographical archive.