1. Hoefle, M., Rickes, M., Oprea, I., Cojocari, O.: Qualification of direct detection technology for ESA MetOp-SG space mission. In: 28th International Symposium on Space THz Technology ISSTT (2017)
2. Cojocari, O., Oprea, I., Gibson, H., Walber, A.: SubMM-wave multipliers by film-diode technology. In: 46th European Microwave Conference (EuMC) (2016)
3. Moro-Melgar, D., Cojocari, O., Oprea, I., Rickes, M., Hoefle, M.: Single-chip 135–160 GHz doubler with more than 150 mW output power based on discrete Schottky diodes. In: 29th International Symposium on Space THz Technology ISSTT (2018)