- [1]
T. Banks, W. Fischler, S. H. Shenker, and L. Susskind, Phys. Rev. D, 55:5112(1997)
- [2]
N. Ishibashi, H. Kawai, Y. Kitazawa, and A. Tsuchiya, Nucl. Phys. B, 498:467(1997)
- [3]
C. M. Hull and P. K. Townsend, Nucl. Phys. B, 438:109(1995)
- [4]
E. Witten, Nucl. Phys. B, 443:85(1995)
- [5]
M. J. Duff, J. T. Liu, and R. Minasian, Nucl. Phys. B, 452:261(1995)
- [6]
T. Lee, Jour. Kor. Phys. Soc., 71:886(2017)
- [7]
T. Lee, Phys. Lett. B, 768:248(2017)
- [8]
T. Lee, Ann. Phys., 183:191(1988)
- [9]
H. Feng and W. Siegel, Phys. Rev. D, 75:046006(2007)
- [10]
V. A. Kostelecky, and S. Samuel, Nucl. Phys. B, 336:263(1990)
- [11]
V. A. Kostelecky, and R. Potting, Phys. Lett. B, 381:89(1996)
- [12]
A. Sen and B. Zwiebach, JHEP, 0003:002(2000)
- [13]
N. Moeller and W. Taylor, Nucl. Phys. B, 583:105(2000)
- [14]
E. Coletti, I. Sigalov, and W. Taylor, JHEP, 0309:050(2003)
- [15]
A. A. Tseytlin, Nucl. Phys. B, 276:391(1986)
- [16]
J.-C. Lee and Y. Yang, Review on High energy String Scattering Amplitudes and Symmetries of String Theory, (2015), arXiv:1510.03297
- [17]
S.-H. Lai, J.-C. Lee, and Y. Yang, J. High Energy Phys., 11:062(2016)
- [18]
Y.-t. Huang, O. Schlotterer, and C. Wen, J. High Energy Phys., 09:155(2016)
- [19]
Y.-t. Huang, W. Siegel, and E. Y. Yuan, J. High Energy Phys., 09:101(2016)
- [20]
S. H. Lai, J. C. Lee, Y. Yang, and T. Lee, Phys. Lett. B, 776:150(2018)
- [21]
L. Hua and M. Kaku, Phys. Rev. D, 41:3748(1990)
- [22]
S. Mandelstam, Nucl. Phys. B, 64:205(1973)
- [23]
S. Mandelstam, Nucl. Phys. B, 69:77(1974)
- [24]
M. Kaku and K. Kikkawa, Phys. Rev. D, 10:1110(1974)
- [25]
M. Kaku and K. Kikkawa, Phys. Rev. D, 10:1823(1974)
- [26]
E. Cremmer and J. L. Gervais, Nucl. Phys. B, 76:209(1974)
- [27]
E. Cremmer and J. L. Gervais, Nucl. Phys. B, 90:410(1975)
- [28]
M. B. Green, J. H. Schwarz, and E. Witten, Superstring Theory Volume 1 and 2, (Cambridge University Press, 1987)
- [29]
E. Witten, Nucl. Phys. B, 268:253(1986)
- [30]
E. Witten, Phys. Rev. D, 46:5467(1992)
- [31]
J. Bordes, H. M. Chan, L. Nellen and S. T. Tsou, Nucl. Phys. B, 351:441(1991)
- [32]
A. Abdurrahman and J. Bordes, Phys. Rev. D, 58:086003(1998)
- [33]
L. Rastelli, A. Sen, and B. Zwiebach, JHEP, 0111:035(2001)
- [34]
D. J. Gross and W. Taylor, JHEP, 0108:009(2001)
- [35]
T. Kawano and K. Okuyama, JHEP, 0106:061(2001)
- [36]
J. R. David, JHEP, 10:017(2000)
- [37]
H. Hata, K. Itoh, T. Kugo, H. Kunitomo, and K. Ogawa, Phys. Lett. B, 172:186(1986)
- [38]
L. Rastelli and B. Zwiebach, JHEP, 0109:038(2001)
- [39]
Y. Okawa, Prog. Theor. Phys., 128:1001(2012)
- [40]
T. Lee, EPJ Web of Conferences, 168:07004(2018)
- [41]
T. Lee, Four-Graviton Scattering and String Path Integral in the Proper-time gauge, arXiv:1806.02702[hep-th]
- [42]
T. Lee, Phys. Lett. B, 782:589(2018)