SEARCH Articles Figures Tables Brillouin-Wigner coupled cluster singles Brillouin-Wigner coupled-clusters Cluster coupled Cluster roots Multi couplings Multi-reference Brillouin-Wigner coupled-cluster theory, single-root Multi-reference coupled-cluster Single reference Brillouin-Wigner Single-reference Single-root formulation of the multi-reference Brillouin-Wigner coupled-cluster theory Single-root multi-reference Brillouin-Wigner coupled cluster theory Hilbert space approach