Erwin Häckel

Tightening the reins : towards a strengthened international nuclear safeguards system

Gotthard Stein, Erwin Häckel, 2000 .

Model Protocol Additional to the Agreement(s) between State(s) and the International Atomic Energy Agency for the Application of Safeguards

Gotthard Stein, Erwin Häckel, G. Stein, 2000 .

Politische Kybernetik : Modelle und Perspektiven

Erwin Häckel, Karl Wolfgang Deutsch, K. Deutsch, 1973 .