· Shepherd, L. J. a J. Weldes. 2008. „Security: The State (of) Being Free from Danger?“

· Shepherd, L. J. a J. Weldes. 2008. „Security: The State (of) Being Free from Danger?“ Pp. 529–537 in H. G. Brauch, N. Ch. Behera, Ü. O. Spring, B. Chourou, C. Mesjasz, P. Kameri Mbote, J. Grin, P. H. Liotta a P. Dunay (eds.). Globalization and Environmental Challenges. Reconceptualizing Security in the 21st Century. Berlin: Springer.