No definitive work has ever been done studying the changes, if any, the sport of football may have on players.

The book "is still the definitive work on the subject".

The definitive work is known as opus 61 of the musician.

It is considered to be the definitive work on the subject.

While attempting to research the heritage of black athletes, he found no definitive work on the subject.

It is commonly known to be the definitive work on military strategy and tactics of its time.

The definitive work on pain, at least as we know it now.

His two-volume study (1967) of the site remains the definitive work.

Their book is regarded as the definitive work, if probably not the final word, on the subject.

I can claim in all modesty to have written the definitive work on the subject.