See also:

• Regional: Europe: Science and Environment  (22)

Bulgarian Academy of Sciences - Board, central administration and research units..

Bulgarian Ship Hydrodynamics Centre - Conducts research in ship and offshore hydrodynamics, coastal hydraulics, aerodynamics, environment, water transport and information technology..

IEEE Bulgaria - Regional section of the institute of electrical and electronics engineers..

Wide Field Plate Database - Contains the descriptive information for the astronomical wide-field (>1°) photographic observations stored in numerous archives all over the world..