Geometry Eigenvalues and Scalar Product from Recoupling Theory in Loop Quantum Gravity
Authors: Roberto De Pietri (Parma U. & INFN, Parma), C. Rovelli (Pittsburgh U.) http://arxiv.org/abs/gr-qc/9602023
The complete spectrum of the area from recoupling theory in loop quantum gravity
Authors: Simonetta Frittelli, Luis Lehner, Carlo Rovelli (Univ. of Pittsburgh) http://arxiv.org/abs/gr-qc/9608043