PhD-thesis: Automatic Assessment of Children Speech to Support Language Learning. German title: Automatische Bewertung der Sprache von Kindern als Hilfe beim Fremdsprachenlernen (Logos Verlag, Berlin) download thesis (pdf)
More about my former research in the field of automatic speech recognition at the Pattern Recognition Lab (Computer Science Department 5) of the Friedrich-Alexander University Erlangen-Nuremberg: here