investigators.add(new MinDegreeAttributes(selector));
investigators.add(new MinDegreeContainments(selector));
investigators.add(new MinDegreeReferences(selector));
investigators.add(new MinDegreeReferencesWithoutContainments(selector));
investigators.add(new ReferencesCount(selector));
investigators.add(new ReferencesCountIgnoreEmpty(selector));
investigators.add(new ReferencesCycles(selector));
investigators.add(new ReferencesDiameter(selector));
investigators.add(new ReferencesRadius(selector));
investigators.add(new ReferencesSum(selector));
investigators.add(new ReferencesWithoutContainmentsCount(selector));