G. Bali, A comprehensive lattice study of SU(3) glueballs, Physics Letters B, vol.309, issue.3-4, p.378, 1993.
DOI : 10.1016/0370-2693(93)90948-H

J. Sexton, Numerical Evidence for the Observation of a Scalar Glueball, Physical Review Letters, vol.75, issue.25, p.4563, 1995.
DOI : 10.1103/PhysRevLett.75.4563

F. E. Close and M. J. Teper, On the lightest Scalar Glueball Rutherford Appleton Laboratory report no. RAL-96-040, pp.96-131