Cf. Jack Donnelly, Realism and International Relations (Cambridge Univ. Press, 2000), pp. 11–12, though he prefers the label "biological realist" to "classical realist". For an argument that the differences between classical and structural realists have been exaggerated, see Parent, Joseph M.; Baron, Joshua M. (2011). „Elder Abuse: How the Moderns Mistreat Classical Realism“. International Studies Review. 13 (2): 192–213. doi:10.1111/j.1468-2486.2011.01021.x.
Rösch, Felix. „Pouvoir, puissance, and politics: Hans Morgenthau's dualistic concept of power?“. Review of International Studies. 40 (2): 349–365. doi:10.1017/S0260210513000065.
