Archivi ER - Sistema informativo partecipato degli archivi storici in Emilia-Romagna

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        <unitid countrycode="IT" encodinganalog="ISAD 1 - 1 reference code" identifier="AS00053" label="Comune di Bologna" repositorycode="ER.IBC">053 - 001.002</unitid>
        <unittitle encodinganalog="ISAD 1 - 2 title">Attestato
            <unitdate encodinganalog="ISAD 1 - 3 date(s)" normal="18280101-18281231">1828</unitdate>
        </unittitle>
    </did>
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