Eyen is considered a principal proponent of the 1960s neo-expressionist off-off-Broadway movement.

The principal proponents of the substantivist model were George Dalton and Paul Bohannan.

With the loss of its principal proponent, however, the search for Vulcan abated.

He took an active part in dechristianisation and was a was a principal proponent of the Cult of Reason.

Minister of Economy during much of the 1959-62 period, he was one of the principal proponents of economic conservatism in modern Argentina.

That is something for which I have been the principal proponent for a long time.

The principal political proponent of the change was Prime Minister Lester Pearson.

The road is named for the principal proponents of its construction.

Secretary of State James A. Baker 3d has been the principal proponent of greater aid.

A principal proponent of their theory was the FBI agent who killed McCoy.