1. Hess VF. Convection phenomena in ionized gas-ion winds. Physikalishce Zeitschrift. 1912;1912:1084-1091
2. Engel R, Sekel D, Stanev T. Neutrinos from propagation of ultra-high energy protons. Physics Review. 2001;D64:093010
3. Bădescu A. Radio technologies used in cosmic particle detection [Doctor Thesis]. Romania: The Polytechnic University of Bucharest; 2011
4. Carroll B, Ostlie D. An introduction to modern astrophysics. In: Pearson, editor. San Francisco: Addison-Wesley; 2007. p. 18
5. Savu V. Contributions to the selection and processing of radio pulses produced by cosmic radiations in the specific conditions of an observer built in a saline environment [Doctor Thesis]. Romania: The Polytechnic University of Bucharest; 2014