Under this; under authority of or in accordance with this.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. in a subsequent part of this document or statement or matter etc.
ad. under the terms of this agreement
Word Usage
"I am often looking for tales to present, and sometimes, as in the deeply upsetting matter described hereunder, I do find one too awful and too strange for the show."