(1)
Ponomaryov, A.; Savchenko, E.; Gumenchuk, G.; Khizhniy, I.; Frankowski, M.; Bondybey, V. Thermoactivation Spectroscopy of Solid Ar Doped With N2: Electronic Processes in Cryocrystals. Fiz. Nizk. Temp. 2007, 33, 705-710.