TY  - RPRT
TI  - Comparative quantizations of (2+1)-dimensional gravity.
AU  - S Carlip
AU  - JE Nelson
PY  - 1995
DO  - 10.1103/physrevd.51.5643
UR  - https://pubmed.ncbi.nlm.nih.gov/10018320/
ID  - 10018320
ER  -