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Tofilovska, S.; Wetzel, C. E.; Ector, L.; Levkov, Z. (2014). Observation on Achnanthes Bory sensu stricto (Bacillariophyceae) from subaerial habitats in Macedonia and comparison with the type material of A. coarctata (Brebisson ex W. Smith) Grunow, A. coarctata var. sinaensis Hustedt and A. intermedia Kutzing. Fottea. 14(1): 15–42.