SEARCH Articles Figures Tables Accounting for Relativistic Effects within the Douglas-Kroll-Hess Theory Accuracy Douglas-Kroll-Hess calculations Douglas Douglas-Kroll Hamiltonian Douglas-Kroll calculations of EFGs excluding the PCE Douglas-Kroll first-order Douglas-Kroll higher-order Douglas-Kroll method Douglas-Kroll operator Douglas-Kroll second-order Douglas-Kroll transformation Douglas-Kroll transformation (relativistic Douglas-Kroll transformations of higher order Douglas-Kroll-Hess Douglas-Kroll-Hess AIMP molecular Hamiltonian Douglas-Kroll-Hess Hamiltonian Douglas-Kroll-Hess Hamiltonian/method Douglas-Kroll-Hess Hamiltonians Douglas-Kroll-Hess Property Transformation Douglas-Kroll-Hess Theory Douglas-Kroll-Hess method Douglas-Kroll-Hess operator Douglas-Kroll-Hess transformation Douglas-Kroll-Hess transformation relativistic effects Douglas-Kroll-Transformed Spin-Orbit Operators Douglas-Kroll-transformed Hamiltonian Extended Douglas-Kroll transformation Generalized Douglas-Kroll Transformation Hamiltonian Douglas-Kroll, second-order Implementation of the Douglas-Kroll Transformation Kroll Relativistic computations, Douglas-Kroll Relativistic computations, Douglas-Kroll Hamiltonians The Douglas-Kroll Method The Douglas-Kroll Transformation The Douglas-Kroll-Hess transformation Two-Electron Terms and the Douglas-Kroll-Hess Approximation Two-component Douglas-Kroll Hamiltonians