Mitka, J., Boroń, P., Novikoff, A., Wróblewska, A., AND Binkiewicz, B.. " Two major groups of chloroplast DNA haplotypes in diploid and tetraploid Aconitum subgen. Aconitum (Ranunculaceae) in the Carpathians" Modern Phytomorphology [Online], Volume 9 Number Suppl. (1 April 2016)