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CHOUKSANOVA, N.A., L.I. SVESHNIKOVA, & T.V. ALEXANDROVA. 1968. A new evidence on chromosome numbers in species of the family Compositae Giseke. Citologija 10: 381-386.
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