GNSS Storm Nowcasting Demonstrator for Bulgaria. - Guergana Guerova; Jan Dousa; Tsvetelina Dimitrova; Anastasiya Stoycheva; Pavel Václavovic; Nikolay Penov (Remote. Sens., 2022)

Sofia Airport Visibility Estimation with Two Machine-Learning Techniques. - Nikolay Penov; Guergana Guerova (Remote. Sens., 2023)