Sanyal, A. K., P. Dey, V. P. Uniyal, K. Chandra, and A. Raha. “Geometridae Stephens, 1829 from Different Altitudes in Western Himalayan Protected Areas of Uttarakhand, India (Lepidoptera: Geometridae)”. SHILAP Revista De lepidopterología, vol. 45, no. 177, Mar. 2017, pp. 143-6, doi:10.57065/shilap.978.