By 1965 Wirtz had started his first independent production company, releasing records that have since become enduring classics.

That work on James has become an enduring classic.

The single has become an enduring classic.

It is generally considered to be one of the most enduring classics of Canadian humorous literature.

Pittsburgh's role in popular music began with native Stephen Foster and his enduring classics of the 1800s.

Initially envisaged as a research resource, the finished site, www.bovary.fr, brought a new dimension to the enduring classic.

It is an enduring classic of Canadian folk music, covered by a variety of other artists.

In the years since, it has become an enduring classic.

The song's lilting tune and heart-rending words have made it an enduring classic.

The Tale of the Genji is recognized as an enduring classic.