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Jüttner, I., Gurung, S., Sharma, C., Sharma, S., De Hann, M. & Van de Vijver, B. (2010). Morphology of new taxa in the Cymbella aspera and Cymbella neocistula groups, Cymbella yakii sp. nov., and Cymbella cf. hantzschiana form Everest National Park, Nepal. Polish Botanical Journal. 55(1): 73-92.