UDC has traditionally been used for the indexing of scientific articles which was an important source of information of scientific output in the period predating electronic publishing.
This was an important source of information of scientific output in the period predating electronic publishing. UDC has traditionally been used for the indexing of scientific articles.
UDC has traditionally been used for the indexing of scientific articles. This was an important source of information of scientific output in the period predating electronic publishing.
UDC has traditionally been used for the indexing of scientific articles. This was an important source of information of scientific output in the period predating electronic publishing.