(Co) Author: Cholakov, I.
ULF fluctuations of the geomagnetic field and ionospheric sounding measurements at low latitudes during the first CAWSES campaign. Annales Geophysicae, 24, 5, 1455-1468.
Panagjurishte Observatory Upgrade for INTERMAGNET. 12th IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition and Processing (Belsk 2006), 284-290.| EDOC: 10059 | (2007):