Mike's musical collaborations continued to expand during the late 80s and early 90s.

Although their collaboration continued after the war, Douglass showed no inclination to leave his wife.

This collaboration with the community has continued with the development of further army lists.

This collaboration would continue throughout most of Vasiliev's professional life.

Their collaboration on a variety of projects has continued for more than 30 years.

Their collaboration began with her dissertation on children's conservation and continued for almost 50 years.

This collaboration with her husband continues in a new book series for very young children.

In the following years, mixtapes were made and further collaborations continued.

I am sure our collaboration will continue with the same aims and priorities.

Their intense friendship and professional collaboration would continue until the end of her life.