MANCA, Marina, and Fiorenza G. MARGARITORA. “Unusual Median Pores of Alona Head Shields Recovered from Recent and Pre-Industrial Sediments of Alpine Lakes”. Journal of Limnology 67, no. 1 (February 1, 2008): 44–48. Accessed April 20, 2024. https://www.jlimnol.it/jlimnol/article/view/jlimnol.2008.44.