T. Niemeyer

Wilson theory for 2-dimensional Ising spin systems

T. Niemeyer, J. V. Leeuwen, 1974 .

On the ground state of crystals with dipole-dipole and exchange interactions

T. Niemeyer, 1972 .

Matrix elements of the Breit - Pauli Hamiltonian and Singlet - triplet mixing in the helium iso-electronic sequence☆

T. Niemeyer, R. V. Eynde, G. Wiebes, 1972 .