R. Babu and S. Nandy, “A Comparative Review of Three Closely Related <I>Calicnemia</i> Species - <I>C. Pulverulans</I> Selys, <I>C. Imitans</I> Lieftinck and <I>C. Sudhaae</I> Mitra (Odonata : Zygoptera : Platycnemididae)”, rzsi, vol. 109, no. 3, pp. 79–84, Sep. 2009.