References
- Mulhall , S . 1993 . On being in the world. Wittgenstein and Heidegger on seeing aspects (1990) , London : Routledge .
- Svensson , G . 1992 . Wittgenstein om kunskap och visshet (Wittgenstein on knowledge and certainty) , Stockholm : Thales .
- Wittgenstein , L . 1981 . Om visshet (Über Gewissheit/On certainty (1969)) , Lund : Doxa .