 There are also various approaches in the current debate that cannot easily be classified: Mitchell (1997, 2002a, b; 2008, 2009), Sober 1997, Steel (2007, chapter 6) and Reiss (2008) attempt to explicate a theory of laws that fits scientific practice in biology, the social sciences and generalization describing complex systems. Further, Mitchell (2000), Craver (2007), Tobin (2005) and Reutlinger (2011) distinguish various dimensions of the non-universality of (cp-)laws in order to argue for an explication of laws in the special sciences. Karbasizadeh (2008) links the debates on cp-laws and natural kinds. Ladyman and Ross (2007, chapters 4 and 5), Kincaid (2008), Ross (2008), and Ladyman (2008) argue for ontic structural realism as a metaphysics of generalizations in the social sciences (and for the special sciences in general). Finally, Maudlin (2007, chapter 5) advocates an explication of laws in the special sciences that is based on the notion of quasi-Newtonian laws.