Visagaa Publishing House, the publisher of
Natural Resources for Human Health is a subscriber member to the
PORTICO digital preservation. Natural Resources for Human Health ensures the perpetual availability of all published information. The ITHAKA's
PORTICO digital preservation programme enables the academic community to employ digital technology to preserve the intellectual record and improve research and teaching in sustainable ways.
The
PORTICO archive currently contains more than 125 million preserved archival units (articles, books, etc) from a total number of 949 participating publishers.