Litim, D. F., & Pawlowski, J. M. (1999). On gauge invariance and ward identities for the Wilsonian renormalisation group. Nuclear physics. Proceedings supplements, 74(1/3), . https://doi.org/10.1016/S0920-5632(99)00187-5
Chicago Style (17th ed.) CitationLitim, Daniel F., and Jan M. Pawlowski. "On Gauge Invariance and Ward Identities for the Wilsonian Renormalisation Group." Nuclear Physics. Proceedings Supplements 74, no. 1/3 (1999). https://doi.org/10.1016/S0920-5632(99)00187-5.
MLA (9th ed.) CitationLitim, Daniel F., and Jan M. Pawlowski. "On Gauge Invariance and Ward Identities for the Wilsonian Renormalisation Group." Nuclear Physics. Proceedings Supplements, vol. 74, no. 1/3, 1999, https://doi.org/10.1016/S0920-5632(99)00187-5.
Warning: These citations may not always be 100% accurate.