title: [Periodic recurrence of verses in the song of the black-bird Turdus merula].
mesh_terms: D000818:Animals; D001717:Birds / Q000502:physiology*; D010507:Periodicity; D013016:Sound; D014828:Vocalization, Animal
vernacular_title: Periodische Strophenwiederkehr im Gesang der Amsel Turdus merula.