Starting with the 1960s, the Russian military has been researching a series of ground effect vehicles. The idea of an ekranoplan has been revived this year.
Lun-class ekranoplan - Wikipedia
Wing in Ground Effect – Flight in an Ekranoplan – Air Power Asia
List of ground-effect vehicles - Wikipedia
Airplane technology: Russia develops huge Ground Effect Vehicle that skims the ground - TomoNews
Ground-effect vehicle - Wikipedia
Russian Ground Effect Vehicles - autoevolution
Russian Ground Effect Vehicles - autoevolution
The Soviet Union's Lun- Class Ekanoplane Is the Biggest Ground Effect Vehicle Ever
Ground Effect Vehicles - the Russian Ekranoplan : r/RetroFuturism
Soviet ground effect vehicle KM & Lun-class ekranoplan