Invalid expression:[ck]{1
Brockhaus-1911: Dahl [3] · Dahl [4] · Dahl · Dahl [2]
Herder-1854: Clausen · Dahl [2] · Dahl [1]
Meyers-1905: Clausen · Dahl [2] · Dahl [1]
Pierer-1857: Clausen · Dahl
Schmidt-1902: Dahl, Johan