On the Axiomatics of the 5-dimensional Projective Unified Field Theory   of Schmutzer
  For more than 40 years E.Schmutzer has developed a new approach to the (5-dimensional) projective relativistic theory which he later called Projective Unified Field Theory (PUFT). In the present paper we introduce a new axiomatics for Schmutzer's theory. By means of this axiomatics we can give a new geometrical interpretation of the physical concept of the PUFT. 
A.K.Gorbatsievich