The paper “Eigenvalue estimates for multi-form modified Dirac operators” co-authored by Jan Gutowski and George Papadopoulos (Kings College London) has been published in the Journal of Geometry and Physics. The paper gives estimates for the eigenvalues of a class of modified Dirac operators which are constructed from a standard Dirac operator with the addition of a Clifford algebra element associated to a multi-degree form. The published version can be found here, with the front page below.