¿Quién queda en el armario?Donatella Di Marco, Lourdes Munduate, Alicia Arenas, Helge Hoel · First published 2018Open the Tome
Bullying and Harassment in the WorkplaceStale Einarsen, Helge Hoel, Dieter Zapf, Cary Cooper · First published 2010Open the Tome
Bullying and Emotional Abuse in the WorkplaceCary L. Cooper, Helge Hoel · First published 2002Open the Tome
