TY  - RPRT
TI  - Classical open string models in four-dimensional Minkowski spacetime.
AU  - P Wegrzyn
PY  - 1994
DO  - 10.1103/physrevd.50.2769
UR  - https://pubmed.ncbi.nlm.nih.gov/10017909/
ID  - 10017909
ER  -