 Additionally, the number of links between different entries in the databases reaches over 2,000,000.Publications based on those databases include the Encyclopedia of World Problems and Human Potential, the Yearbook of International Organizations, the International Congress Calendar, and many other.Judge carried out also consulting and related activities with such institutions as the United Nations Institute for Training and Research (UNITAR), UNESCO, UN Environment Programme (UNEP), UN University (Tokyo), and the Commonwealth Science Council.