KorenovskiiA. A.; KorolyukV. S.; KoshlyakovV. N.; SamoilenkoA. M. Ivan Oleksandrovych Lukovs’kyi (on his 70-th birthday). Ukrains’kyi Matematychnyi Zhurnal, v. 57, n. 10, p. 1418-1419, 25 Oct. 2005.