1. A. E. Andreikiv and V. V. Panasyuk, “Pressure of a system of circular punches on an elastic half-space,” Dokl. AN USSR, Ser. A, No. 6, 535–536 (1971).
2. N. M. Borodachev, “Solution of a contact problem of thermoelasticity: Axially symmetric case,” Izv. AN SSSR, OTN, Mekh. Mashinostr., No. 5, 86–90 (1962).
3. N. M. Borodachev and F. N. Borodacheva, “Indentation of a ring punch into an elastic half-space” Izv. AN SSSR, Mekh. Tverd. Tela, No. 4, 158–161 (1966).
4. L. A. Galin, Contact Problems of Elasticity and Viscoelasticity [in Russian], Nauka, Moscow (1980).
5. V. T. Grinchenko, A. F. Ulitko, and N. A. Shul’ga, Electroelasticity, Vol. 1 of the six-volume series Mechanics of Coupled Fields in Structural Members [in Russian], Naukova Dumka, Kyiv (1989).