Helsinki 1975 encouraging competent organizations and relevant firms to conclude agreements and contracts and contributing, by this means, to a gradual increase in the number and diversity of works by authors from the other participating States available in the original and in translation in their libraries and bookshops; promoting, where deemed appropriate, an increase in the number of sales outlets where books by authors from the other participating States, imported in the original on the basis of agreements and contracts, and in translation, are for sale; promoting, on a wider scale, the translation of works in the sphere of literature and other fields of cultural activity, produced in the languages of the other participating States, especially from the less widely-spoken languages, and the publication and dissemination of the translated works by such measures as: encouraging more regular contacts between interested publishing houses; developing their efforts in the basic and advanced training of translators; encouraging, by appropriate means, the publishing houses of their countries to publish translations; facilitating the exchange between publishers and interested institutions of lists of books which might be translated; promoting between their countries the professional activity and co-operation of translators; carrying out joint studies on ways of further promoting translations and their dissemination; improving and expanding exchanges of books, bibliographies and catalogue cards between libraries; • to envisage other appropriate measures which would permit, where necessary by mutual agreement among interested parties, the facilitation of access to their respective cultural achievements, in particular in the field of books; • to contribute by appropriate means to the wider use of the mass media in order to improve mutual acquaintance with the cultural fife of each; • to seek to develop the necessary conditions for migrant workers and their families to preserve their links with their national culture, and also to adapt themselves to their new cultural environment; • to encourage the competent bodies and enterprises to make a wider choice and effect wider distribution of full-length and documentary films from the other participating States, and to promote more frequent non-commercial showings, such as premières, OSCE Human Dimension Commitments 21