R. Medina et N. Berkovits, PASTI-SOROKIN-TONIN ACTIONS IN THE PRESENCE OF SOURCES, Physical review. D. Particles and fields, 56(10), 1997, pp. 6388-6390
Pasti, Sorokin, and Tonin have recently constructed manifestly Lorentz
-invariant actions fur self-dual field strengths and for Maxwell field
s with manifest electromagnetic duality. Using the method of Deser et
al., we generalize these actions in the presence of sources. [S0556-28
21(97)04722-X].