1. The first steps of symplectic topology;Arnol′d, V. I.;Uspekhi Mat. Nauk,1986
2. New invariants of 3- and 4-dimensional manifolds;Atiyah, Michael,1988
3. The Yang-Mills equations over Riemann surfaces;Atiyah, M. F.;Philos. Trans. Roy. Soc. London Ser. A,1983
4. A remarkable symplectic structure;Bates, Larry;J. Differential Geom.,1990