Erkara, I. P., O. Koyuncu, M. Ardic, and O. K. Yaylaci. “Anatomy and Palynology of Endemic <i>Stachys iberica</i> Bieb. Subsp. <i>Iberica</i> Var. <i>densipilosa</I> Bhattacharjee (Lamiaceae) from Turkey”. Bangladesh Journal of Botany, vol. 39, no. 2, Mar. 2011, pp. 131-6, doi:10.3329/bjb.v39i2.7298.