The most telling tip-off of an owner's intentions, however, may well be his extensive political contributions.

This album was to involve more extensive contributions from all the band members than previous outings.

Among Marxists, he is known for his extensive contributions to theories of imperialism and underdevelopment.

He made extensive contributions to entomology and parasitology during his career.

He has made extensive contributions to control theory, particularly in the area of system identification.

During the second decade of the 20th Century he made extensive contributions to the following titles :

He is best remembered for his extensive contributions to Opera News magazine.

He has made extensive contributions to books and to numerous legal journal articles.

He has made extensive and highly significant contributions in the field of pharmacology.

Herpin is remembered for his extensive contributions made in the study of epilepsy.