The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

The European Bibliography of Slavic and East European Studies (EBSEES) collects books, journal articles, reviews and dissertations from Eastern Europe (former countries of Eastern Bloc) which were published in Belgium, Germany, Finland, France, Great Britain, the Netherlands, Austria and Switzerland from 1991 to 2007. The segment "Literature" and "Culture" of the European Bibliography of Slavic and East European Studies contains 18.000 bibliographic entries (from the total asset of 85.000). More information can be found here.

Your search for Heude, William provides 1 hits
1	A voyage up the Persian Gulf and a journey overland from India to England in 1817: containing notices of Arabia Felix, Arabia Deserta, Persia, Mesopotamia, The Garden of Eden, Babylon, Bagdad, Koordistan, Armenia, Asia Minor, &c. &c. Heude, William, Reading, Garnet, 1993, x+252 p., [6] p. of plates

The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

A voyage up the Persian Gulf and a journey overland from India to England in 1817: containing notices of Arabia Felix, Arabia Deserta, Persia, Mesopotamia, The Garden of Eden, Babylon, Bagdad, Koordistan, Armenia, Asia Minor, &c. &c.