The same successful formula has worked in all the major arenas around the country and abroad with audiences of 12,000 or more.

Having found a successful formula, he kept to it.

"We just haven't seen anyone with a successful formula."

This has proved to be a very successful formula.

In recent years the successful formula has remained largely unchanged.

When he added a religious component, he hit upon a successful formula.

Largely based on the successful formula of his radio show, it was initially a big success.

Don't fight with a successful formula, the designer obviously believes.

This has used many successful formulas: in research, government, teaching, publishing, the army, doctors, and business.

Now, though, makers of functional foods believe that they have developed a successful formula.