if (participation.getResultParticipationRole().equals(ResultParticipationRole.Author))
if (participation.getRole().equals(ResultParticipationRole.Author))
    public List<ResultParticipation> getAuthors() {	ArrayList<ResultParticipation> authors = new ArrayList<ResultParticipation>();	for (ResultParticipation participation : this.getResultParticipations()) {	    if (participation.getResultParticipationRole().equals(ResultParticipationRole.Author))		authors.add(participation);	}	return authors;    }