Here is a selective bibliography containing some publications important for this seminar. You will find these in my semester apparatus either in the Seminar Library (TB) or in the University Library (UB).
Busch-Lauer, I.-A., and S. Fiedler (ed.), Sprachraum Europa: Alles Englisch oder ...? (Berlin, 2011). (UB)
Coupland, N. (ed.), The Handbook of Language and Globalization (Oxford, 2010). (UB) also available here
Durkin, P., The Oxford Guide to Etymology (Oxford, 2009). (TB: Semantics, UB: Semantics)
Fisiak, J., and M. Bator (ed.), Foreign Influences on Medieval English (Frankfurt, 2011). (TB)
Görlach, M. (ed.), A Dictionary of European Anglicisms: A Usage Dictionary of Anglicisms in Sixteen European Languages (Oxford, 2001). (UB)
Görlach, M. (ed.), An Annotated Bibliography of European Anglicisms (Oxford, 2002). (TB)
Görlach, M. (ed.), English in Europe (Oxford, 2002). (UB)
Görlach, M., English Words Abroad (Amsterdam, 2003). (UB)
Hickey, R. (ed.), The Handbook of Language Contact (Oxford, 2010). (UB) also available here
Holm, J., An Introduction to Pidgins and Creoles (Cambridge, 2000). (TB, UB)
Hughes, G., A History of English Words (Oxford, 2000). (UB)
Kastovsky, D., 'Vocabulary', in A History of the English Language, ed. R. Hogg and D. Denison (Cambridge, 2006), pp. 199-270. (UB)
Miller, D. G., External Influences on English: From Its Beginnings to the Renaissance (Oxford, 2012). (UB)
Schreier, D., and M. Hundt (ed.), English as a Contact Language (Cambridge, 2013). (UB)
Serjeantson, M. S., A History of Foreign Words in English (London, 1935; repr. New York, 1961). (TB)
Speake, J., ed., The Oxford Dictionary of Foreign Words and Phrases (Oxford, 1997). (TB)
Urdang, L., and F. R. Abate (ed.), Loanwords Dictionary: a Lexicon of More than 6,500 Words and Phrases Encountered in English Contexts that are not Fully Assimilated into English and Retain a Measure of Their Foreign Orthography, Pronunciation, or Flavor (Detroit, MI, 1988). (UB)