return curricularCourse.getEctsCredits().doubleValue();
return ectsCredits(curricularCourse);
	public double getEctsCredits() {	    final Enrolment enrolment = getEnrolment();	    final CurricularCourse curricularCourse = enrolment.getCurricularCourse();	    return curricularCourse.getEctsCredits().doubleValue();	}