@article{SIGMA_2014_10_a91,
     author = {Edward Anderson},
     title = {Beables/Observables in {Classical} and {Quantum} {Gravity}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2014},
     volume = {10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2014_10_a91/}
}