Background configurations, confinement and deconfinement on a lattice with BPS monopole boundary conditions E.-M. Ilgenfritz, S.V. Molodtsov, M. Müller-Preussker and A.I. VeselovEur. Phys. J. C, 8 2 (1999) 335-342DOI: https://doi.org/10.1007/s100520050467