”Alles in allem handelt es sich um eine Studie von hohem Wert” in: Germanistik, 2012, Band 53, Heft 1-2“Kroonen’s study is well researched and carefully presented. He offers a wealth of data… The author has made important connections between the various items ha has collected from the different Germanic languages, including modern dialects, and used reasoned judgment in their evaluation. The book will prove useful not only to scholars of Germanic and Indo-European phonology and morphology, but also those interested in Germanic etymology.”NOWELE 67:2 (2014)