Kalinichenko I. S. Non-perturbative corrections to the one-loop free energy induced by a massive scalar field on a stationary slowly varying in space gravitational background / I. Kalinichenko, P. Kazinski // Journal of high energy physics. 2014. № 8. P. 111 (1-60). URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000493161