DSm Vector Spaces of Refined Labels
  In this book the authors introduce the notion of DSm vector spaces of refined labels. They also realize the refined labels as a plane and a n-dimensional space. Further, using these refined labels, several algebraic structures are defined. Finally DSm semivector space or refined labels is described. Authors also propose some research problems. 
W. B. Vasantha Kandasamy, Florentin Smarandache
math.GM