Talk about: Discuss or mention, talk of [from wordweb]

Talk over:to discuss or chat about (a topic) [from wordreference.com, English definition]

The notion of limit is rather complicated. In fact, mathematicians talked about limits for centuries before they were able to define the concept clearly. Even the ancient Greeks had some feeling for limits; for example, Archimedes found an approximation of the value of 2pi as the "limit" of the perimeters of regular polygons inscribed in a circle of radius 1 by letting the number of sides grow without bound.

Hi, In the above context can we use refer instead "talk about" i.e " In fact, mathematicians referred to limits for centuries before they were able to define the concept clearly."

Source of context:Calculus with analytic geometry by Robert Ellis and Denny Gulick.

Thank you.