"Emission spectroscopy of an atmospheric pressure plasma jet operated with air at low frequency" (2015) Giuliani, L.;Gallego, J.L.;Minotti, F. (...)Ad Astra Rocket Company; Instituto Tecnologico de Costa Rica; International Atomic Energy Agency (IAEA); Universidad Nacional de Costa Rica 15th Latin American Workshop on Plasma Physics, LAWPP 2014 and 21st IAEA TM on Research Using Small Fusion Devices, RUSFD 2014. 591(1)