(1)
Doronin, Y. S.; Vakula, V. L.; Kamarchuk, G. V.; TkachenkoА. А.; Samovarov, V. N. Neutral and Charged Excimer Complexes in Cathodoluminescence Spectra from Substrate-Free Icosahedral and Crystalline Clusters of Argon. Physics 2016, 32-35.