• A PL study of deep bands in CuIn1-xGaxSe2Krustok, Jüri; Raudoja, Jaan; Yakushev, M.V.; Pilkington, R.D.; Hill, A.E.; Collan, HeikkiTwelfth International Conference on Ternary and Multinary Compounds : March 13-17, 2000 : National Tsing Hua University, Hsinchu, Taiwan : abstract[s]2000 / p. P2-61
• On the shape of the close-to-band-edge photoluminescent emission spectrum in compensated CuGaSe2Krustok, Jüri; Raudoja, Jaan; Yakushev, M.; Pilkington, R.D.; Collan, HeikkiPhysica status solidi (a)1999 / p. 483-490 https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291521-396X%28199906%29173%3A2%3C483%3A%3AAID-PSSA483%3E3.0.CO%3B2-A
• Photoluminescence study of deep levels in CuGaTe2 crystalsKrustok, Jüri; Raudoja, Jaan; Yakushev, M.; Pilkington, R.D.; Collan, HeikkiJournal of applied physics1999 / 9, p. 5305-5307: ill