Polarization-transfer electron-Zeeman resolved (EZ) EPR is introduced. In this two-dimensional pulse EPR method. which is based on the stimulated-echo sequence, the magnetic field is changed during the pulse sequence by applying a sinusoidal field of variable amplitude. EZ-EPR can be used to improve the spectral resolution of disordered systems with g anisotropy or to separate overlapping spectra of sites with different g values in single-crystal EPR studies. A theoretical description of the method is given. and model calculations as well as experiments on disordered systems with anisotropic electron Zeeman interactions are presented. (C) 2002 Elsevier Science B.V. All rights reserved.