TY  - RPRT
TI  - Topology changes in (2+1)-dimensional quantum gravity.
AU  - Y Fujiwara
AU  - S Higuchi
AU  - A Hosoya
AU  - T Mishima
AU  - M Siino
PY  - 1991
DO  - 10.1103/physrevd.44.1763
UR  - https://pubmed.ncbi.nlm.nih.gov/10014056/
ID  - 10014056
ER  -