Liên quan Ivor Grattan-Guinness Ivory Coast Ivor Guest, 4th Viscount Wimborne Ivory Ivor Guy Ivors Ivor Weitzer Ivorra Ivorá Ivor Novello Awards
Tài liệu tham khảo WikiPedia: Ivor_Grattan-Guinness http://cantic.bnc.cat/registres/CUCId/a10095482 http://academic.research.microsoft.com/Author/1867... http://uli.nli.org.il/F/?func=direct&doc_number=00... http://data.bibliotheken.nl/id/thes/p069306982 http://www.genealogy.ams.org/html/id.phtml?id=2833... http://www.ams.org/journals/bull/1972-78-03/S0002-... http://www.ams.org/journals/bull/2003-40-01/S0273-... http://www.ams.org/notices/200007/fea-grattan.pdf //doi.org/10.1090%2FS0002-9904-1972-12909-4 //doi.org/10.1090%2Fs0273-0979-02-00959-x
