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M. PRZEWOZNY, C. GREN, M. MILKOWSKI. 2011.
Laccobius gracilis MOTSCHULSKY, 1855 (Coleoptera: Hydrophilidae), a beetle new in the Polish fauna, with a revised checklist of Laccobius occurring in Poland.
Polskie Pismo Entomologiczne, 2011, 80: 391-396.