$doc->setCompletedDate('2010-09-27');
$opusThreeId = $doc->addIdentifierOpus3();
$opusThreeId->setValue('1234');
// empty URN will be automaticaly replace by new URN.
$urn = $doc->addIdentifierUrn();
$urn->setValue('urn:nbn:de:kobv:nn-opus-173');
$isbn = $doc->addIdentifierIsbn();
$isbn->setValue('978-3-86680-192-9');
$issn = $doc->addIdentifierIssn();
$issn->setValue('1234-5678');
$doc->addIdentifierOpac()->setValue('OPAC-ID 001 1237890654');
// Valid Arxiv-Identifier from ArXiv.org Homepage: http://arxiv.org/help/arxiv_identifier
$arxiv = $doc->addIdentifierArxiv();
$arxiv->setValue('arXiv:0706.0001');
// Valid DOI Identifier from DOI Homepage: http://www.doi.org/
$doi = $doc->addIdentifierDoi();
$doi->setValue('10.1000/182');
// Valid Pubmed-Identifier from official Pubmed Tutorial: http://www.nlm.nih.gov/bsd/disted/pubmedtutorial/020_830.html
$pubmed = $doc->addIdentifierPubmed();
$pubmed->setValue('9382368');
$doc->setThesisDateAccepted('2003-02-01');
$dnbInstitute = new Opus_DnbInstitute();
$dnbInstitute->setName('Forschungsinstitut für Code Coverage');
foreach (Opus_DnbInstitute::getGrantors() as $grantor) {
    if ($dnbInstitute->getName() === $grantor->getName()) {
        $dnbInstitute = $grantor;
        break;
    }
}
if (is_null($dnbInstitute->getId()) === true) {
    $dnbInstitute->setCity('Mousetown')->setIsGrantor(1)->store();