Max Steinitzer: Straussiana (1910).
Max Steinitzer: Richard Strauss (1911).
In French
Romain Rolland: Musiciens d'aujourd'hui (Paris, 1908).
Paul de Stoecklin: Max Reger (Le Courrier musical, April, 1906).
LITERATURE FOR CHAPTER VIII
In English
H. T. Finck: Songs and Song Writers (New York, 1900).
W. H. Hadow: Studies in Modern Music (London, 1895).
Edgar Istel: German Opera since Richard Wagner (in the Musical Quarterly, April, 1915).