Norton, C. A. M. Modern drama and opera. Boston Book Co. 1911. p. 25-33.
Same. (less additions) Bul. Bibliography 5:35-37 July 1907.
Norton, C. A. M. Modern drama and opera. Boston Book Co. 1915. v. 2, p. 81-90.
Woerner, R. Henrik Ibsen, v. 2. p. 373-83.
Birthday. See Seventieth birthday
Bjørnson and Ibsen
Heiberg, G. E. R. Ibsen og Bjørnson paa scenen.
Helweg, F. Bjørnson og Ibsen i deres to seneste værker.
Ibsen og Bjørnson. Book Buyer 20:140-42. 1900.
Kable, B. Ibsen, Bjørnson, und ihre Zeitgenossen.