[1]
O. Biström, M. Franciscolo, and N. Sanfilippo, “<i>Yolina tiwaiensis</i> Franciscolo & Sanfilippo, 1990, junior synonym of <i>Yolina libera</i> Biström, 1987 (Coleoptera, Dytiscidae)”, Entomol. Fennica, vol. 2, no. 2, p. 52, Jun. 1991.