Iyer, N.Narayana. “A Simple Arrangement for Automatically Lifting off the Pen of Dines Pressure Tube Anemograph”. MAUSAM 4, no. 4 (October 1, 1953): 369–369. Accessed September 20, 2024. http://103.215.208.102/index.php/MAUSAM/article/view/4842.