Komarova & Nowak ( 2001 ) supported Hurford 's model .
Komarova & Nowak ( 2001 ) pointed out that it was limited in the sense that it did not take into account the costs of learning a language .
Komarova & Nowak ( 2001 ) supported Hurford 's model , yet pointed out that it was limited in the sense that it did not take into account the costs of learning a language .