Olson, Robert Wallace (1973). A Comparative Study of Selected Norwegian Romances by Halfdan Kjerulf, Edvard Grieg, and Eyvind Alnaes (Thesis). hdl:2142/64446. OCLC14400426.
Olson, Robert Wallace (1973). A Comparative Study of Selected Norwegian Romances by Halfdan Kjerulf, Edvard Grieg, and Eyvind Alnaes (Thesis). hdl:2142/64446. OCLC14400426.