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Lange-Bertalot, H. (1993). Observations on Simonsenia and some small species of Denticula and Nitzschia. In: P.A. Sims (ed.), Progress in diatom studies, Contributions to taxonomy, ecology and nomenclature. Special volume in honour of Robert Ross on the occasion of his 80th Birthday. Nova Hedwigia, Beiheft. 106: 121-131.
Lange-Bertalot, H. (1993). Observations on Simonsenia and some small species of Denticula and Nitzschia. In: P.A. Sims (ed.), Progress in diatom studies, Contributions to taxonomy, ecology and nomenclature. Special volume in honour of Robert Ross on the occasion of his 80th Birthday. Nova Hedwigia, Beiheft. 106: 121-131.
