Certainly they cannot have conducted any serious study of economic history.

He began serious studies in painting only at the age of 50.

Not until modern times have serious studies of the period been undertaken.

The remainder of the day should be devoted to serious study.

The center has turned out more than 140 serious studies on the book's 21,000 words.

The serious study of oceans began in the early to mid-1900s.

Her serious study of fine art began at this point.

He turned to the serious study of conducting in the early 1970's.

There is no serious study that shows it to be credible.

"I think history tries to be a serious study of facts."