EXISTENCE OF STATIONARY SOLUTIONS FOR SOME SYSTEMS OF INTEGRO-DIFFERENTIAL EQUATIONS WITH SUPERDIFFUSION Article Vougalter V., Volpert V. Rocky Mountain Journal of Mathematics. Rocky Mountain Mathematics Consortium. Vol. 47. 2017. P. 955-970
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIJ. CHERNAYA METALLURGIYA Journal National University of Science and Technology MISIS.