Veselin DobrevTzanio V. KolevChak Shing LeeVladimir Z. TomovPanayot S. VassilevskiAlgebraic Hybridization and Static Condensation with Application to Scalable H(div) Preconditioning.B425-B447201941SIAM J. Sci. Comput.3https://doi.org/10.1137/17M1132562db/journals/siamsc/siamsc41.html#DobrevKLTV19