Brussels, 27/07/2011 (Agence Europe) - The Europa Nostra charity, a European wide cultural heritage federation, adopted a declaration at the end of its annual general assembly on 20 July. Its objective is to shed more light on the added value at both an economic and social level, brought by voluntary workers in the cultural arena, as part of the European Year of Volunteering 2011. The “Amsterdam Declaration on Volunteers as added-value for Europe's cultural and natural heritage”...