The study was started in 1946 and carried out over the next 20 years.

The company has carried out projects all over the world.

And both have begun research programs to be carried out over the next few years.

The attack was carried out over three days, from 23 to 25 November 1977.

Tests were carried out over several years starting in 1882.

The main elements of a deal would be carried out over 12 weeks, or soon after.

Building work started in December 2011 on the 240 property development which will carried out over 7 years.

The current contracts will be carried out over the next three years.

Experiments have been carried out for over 30 years, the results of which are well known.

The development was carried out at an average of 4.5 apartments a week over three years.