Usta, Selçuk. “Evaluation and Calibration of Christiansen Method for Estimating Daily Evaporation from Class-A Pan under the Conditions of Van, Turkey”. The European Journal of Research and Development 4, no. 3 (December 31, 2024): 22–37. Accessed September 14, 2025. https://journals.orclever.com/ejrnd/article/view/484.