Hamilton, P.B. & Weckström, J. (2006). Nitzschia toskalensis sp. nov. a new diatom (Bacillariophyceae) from the sediments of Toskaljavri, northwestern Finland. In: N. Ognjanova-Rumenova & K. Manoylov (eds.), Advances in Phycological Studies. Festschrift in Honour of Prof. Dobrina Temniskova-Topalova. Pensoft Publishers, St. Kliment Ohridski University Press, Sofia-Moscow, pp. 97-109