The two have also made substantial contributions in their own right.

It should be noted, however, that two works from the 70's make substantial contributions to the show.

Certainly they make a substantial contribution to the local economy.

They have both made very substantial contributions to the progress of the Group and we will miss their sound advice.

Perhaps he also made a substantial contribution to the building.

He also made substantial contributions to the state's financial situation.

With your help we hope to make a substantial contribution.

Although this was his main focus, he also managed to make substantial contributions to science during those same years.

Several students, faculty and others made a substantial contribution to creating the film.

This is best achieved if it has a substantial financial contribution to make itself.