"बोलोन्या" च्या विविध आवृत्यांमधील फरक

*{{flagicon|Germany}} [[लाइपझिश]] (1962) <ref name="Leipzig">{{संकेतस्थळ स्रोत|दुवा=http://www.leipzig.de/int/en/int_messen/partnerstaedte/|शीर्षकtitle=Leipzig – International Relations|publisher=© 2009 Leipzig City Council, Office for European and International Affairs|accessdate=2009-07-17}}</ref>

*{{flagicon|Croatia}} [[झाग्रेब]] (1963) <ref name="Zagreb Twinning">{{संकेतस्थळ स्रोत|दुवा=http://www1.zagreb.hr/mms/en/index.html|शीर्षकtitle=Intercity and International Cooperation of the City of Zagreb|publisher=© 2006–2009 City of Zagreb|accessdate=2009-06-23}}</ref>