1998, Donald N. Tuten, Koineization in Medieval Spanish, University of Wisconsin–Madison, page 340:What one sees here is the cumulative effect of repeated koineizations.
2002, Paul Kerswill, “Koinëization and accommodation†in the Handbook of Language Variation and Change, eds. Jack Chambers (linguist), Peter Trudgill, and Natalie Schilling-Estes, , pages 669–702
2011, Richard J. Watts, Language Myths and the History of English, Oxford Scholarship Online, ISBN 9780195327601, chapter 4: “The construction of a modern myth: Middle English as a creoleâ€, chapter abstract:The central argument is that the language contact situations in which early forms of English were involved represent koinëisation and new dialect (or variety) formation rather than creole formation.