Kramer, Eric     Investigative Journalism in Bulgaria: A Post-poned Renaissance [Текст] / Eric Kramer // Creating a free press in Eastern Europe /  ; Al Hester & Kristina White, eds. ; The James M. Cox, Jr., Center for Intern. Mass Communication Training a. Research ; The Henry W. Grady College of Journalism a. Mass Communication ; The Univ. of Georgia, Athens, Georgia, USA. — Athens : The University of Georgia, 1993. — P. 111-160.