Still he remained an intellectual, writing theoretical articles for his followers.

The journal typically includes theoretical and critical articles, book reviews, and illustrations.

The research that is published includes empirical research and theoretical articles.

He has also written many empirical and theoretical articles, dealing most frequently with issues of peace and conflict research.

Shortly before his death, he wrote a theoretical article which sparked a lively debate.

Prior to 1978 he published advanced theoretical articles and two books, primarily in the field of trade theory.

There have been several theoretical articles published on the role and influence of nonprofit executives generally.

He has also been a coach and a writer of books and theoretical articles.

Der arbeyter dealt with questions of everyday working class life, rather than theoretical articles.

He is known, in theoretical articles, for using racy but apt jokes.