1999/12/21 by Luca Lusanna, Lusanna, Luca
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #astro-ph #gr-qc #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9912203
14 pages
arxiv created 1999/12/21 · arxiv updated 2009/11/30
Talk given at the International Workshop ``Physical Variables in Gauge Theories", Dubna 1999