Saba Hashempour Motlagh Shirazi, Fatemeh Razzaghi, Ali Shabani, Ali Reza Sepaskhah, Maryam Khozaei. "Predicting sugar beet leaf area index: evaluating performance of double sigmoid functions under different irrigation and plant density scenarios." Scientific Reports, 2025. doi:10.1038/s41598-025-28713-z