path integral

From Physics wiki

References

^[1]

^[2]

1. ↑ A. Polyakov (1981). "Quantum geometry of bosonic strings". Phys. Lett. B 103. DOI:10.1016/0370-2693(81)90743-7. 
2. ↑ A. Polyakov (1981). "Quantum Geometry of Fermionic Strings". Phys. Lett. B 103. DOI:10.1016/0370-2693(81)90744-9.