@articleTönnies_1999, title=Becker, J.: Nicht-Ich-Identität. Ästhtische Subjektivität in Samuel Becketts Arbeiten für Theater, Radio, Film und Fernsehen, 1998, volume=14, number=2, journal=Forum Modernes Theater, author=Tönnies, Merle, year=1999, pages=229–233 

@articleTönnies_1999, title=Ledger, S.: The New Woman. Fiction and Feminism at the “Fin de Siècle”, 1997, volume=117, journal=Anglia, author=Tönnies, Merle, year=1999, pages=460–462 

@bookTönnies_1997, place=Trier, title=Samuel Beckett’s Dramatic Strategy. Audience Laughter and the Postmodernist Debate, publisher=WVT, author=Tönnies, Merle, year=1997 

@articleTönnies_1996, title=The Spectator as Participant: The Role of Integrating Audience Laughter in Samuel Beckett’s Drama, volume=11, number=2, journal=Forum Modernes Theater, author=Tönnies, Merle, year=1996, pages=185–196