Ditlev, G., & Beckmann, J. H. The Meschede Case: Facts, Questions and Explanations. Methods of case analysis : An international symposium.

Ditlev, Gerd, and Jørn Halberg Beckmann. "The Meschede Case: Facts, Questions and Explanations." Methods of Case Analysis : An International Symposium .

Ditlev, Gerd, and Jørn Halberg Beckmann. "The Meschede Case: Facts, Questions and Explanations." Methods of Case Analysis : An International Symposium, .