private String getStudentNumber() {
return hasRegistration() ? getRegistration().getNumber().toString() : getStudent().getNumber().toString();
}
private String getRegistrationStateLabel() {
final Gender gender = getPerson().getGender();
return gender == Gender.MALE ? BundleUtil
.getString(Bundle.PHD, "label.phd.schoolRegistrationDeclaration.registered.male") : BundleUtil.getString(
Bundle.PHD, "label.phd.schoolRegistrationDeclaration.registered.female");
}