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Skali?ska M., Czapik R., Piotrowicz M. et al. 1959. Further studies in chromosome numbers of Polish Angiosperms (Dicotyledons). Acta Soc. Bot. Pol. 28, 487-529.
BORSOS, o. 1970. Contributions to the knowledge on the chromosome numbers of Phanerogams growing in Hungary and southeastern Europe. Acta Bot. Acad. Sci. Hung. 16: 255-265.
SZ.-BORSO~, o. 1970. Contributions to the knowledge on the chromoso~ numbers of phanerogams growing in Hungary and south-eastern Europe. Acta. Bot. Acad. Sci. Hung. 16(3-4): 255-265. I