1. INTERBALL Satellite [Electronic resource]. URL: http://www.iki.rssi.ru/interball/
2. GEOTAIL Satellite [Electronic resource]. URL: http://pwg.gsfc.nasa.gov/geotail.shtml
3. THEMIS Satellite [Electronic resource]. URL: http://www.nasa.gov/mission_pages/themis/mission/index.html
4. MMS Satellite [Electronic resource]. URL: https://mms.gsfc.nasa.gov/
5. Guzman J.J., Edery A. Mission design for the MMS tetrahedron formation // Aerosp. Conf. 2004. Proceedings. 2004 IEEE. 2004. Vol. 1. P. 540.