Their meeting led to an intensive long-term cooperation in the field of photographic art.

Yet the evidence presented suggested strongly that there was still a significant lack of long-term cooperation between finance and industry.

Up to now the university has established long-term academic cooperation with more than 40 foreign institutions of higher education and research.

In building this world, we count on the long-term cooperation of the United States of America.

On the other hand, a 2007 study found that rewards alone could not sustain long-term cooperation.

The two groups managed to put up quite an effective resistance to the Germans, but long-term cooperation was impossible due to conflicting ideologies.

We need to replace short-term initiatives with long-term, in-depth cooperation.

To this end, we must create a system which will support simultaneously the response to the crisis, prevention and medium- and long-term cooperation.

Security and energy are two areas where there will need to be long-term cooperation to fix some of Kiev's woes.

Its main purpose is to create a legal framework for long-term cooperation in the field of energy on the basis of reciprocity and mutual benefit.