@article{Threadgold87-dialectical,
  author	= {Threadgold, Terry},
  year		= {1987},
  title		= {Rossi-Landi's higher dialectical level: alienation, relativity and ideology},
  journal	= {Il Protagora, anno xxviii, Gennaio-Dicembre, IV catId1 = area_sfl, catId1 = systemicbib, Serie, per Ferruccio Rossi-:andi a cura di Susan Petrilli},
  pages		= {81--98}
}