Most of his songs were written in collaboration with other songwriters.

What success he had as an opera composer was mostly down to works written in collaboration with others.

Unlike most of Williamson's plays, it was written in collaboration, with a doctor.

Many were taken from French originals, and written in collaboration.

All of her books have been written in collaboration with Victor.

The screenplay, which she wrote in collaboration with several others, is not equally sharp.

The same year saw his first medical publications, including two articles written in collaboration with Allison.

Many of his books were written in collaboration with others.

With a total of ten tracks, all but one track was written by Carlos, both in collaboration or alone.

Much of his later work was also written in collaboration with others.