1. Dr Maksym Luz is a Head of Actuary & Chief Risk Officer at BNP Paribas Cardif in Ukraine. He is an author/co-author of more than 20 papers including the book ''Estimation of Stochastic Processes with Stationary Increments and Cointegrated Sequences'', Wiley - ISTE, 2019. 2. Prof. Dr. Mikhail Moklyachuk is a Professor at the Department of Probability Theory, Statistics and Actuarial Mathematics, Taras Shevchenko National University of Kyiv, Ukraine. He is author/co-author of more than 200 papers and 14 books, including ''Robust estimates for functionals of stochastic processes'', Kyiv University, 2008; ''Estimation of Stochastic Processes with Stationary Increments and Cointegrated Sequences'', Wiley - ISTE,2019; Estimation of Stochastic Processes with Missing Observations'', Nova Science Publishers, 2019; ''Estimates of Periodically Correlated Isotropic Random Fields'', Nova Science Publishers, 2018; ''Convex Optimization: Introductory Course'', ISTE-Wiley, 2020; ''Stochastic Processes: Fundamentals and Emerging Applications} (Editor)'', Nova Science Publishers, 2023. Professor Moklyachuk was elected an academician of the Academy of Higher School of Ukraine (2016). He has received the State Prize of Ukraine in the field of education (2012), Taras Shevchenko prize (Kyiv University best textbook award, 1999) for the textbook ``Variational Calculus. Extremum Problems''. He is Editor-in-Chief, journal "Bulletin of the Taras Shevchenko National University of Kyiv. Series: physics and mathematics", member of editorial board, journals "Statistics, Optimization and Information Computing", "Stochastic Modeling and Applications".