A technique for the estimation of the effect of investments in the digitalisation of the dairy subcomplex entitiesMikhail Chernyakov, Maria Chernyakova, Irina Chernyakova, Kamal Akberov, Irina Kharlamova and Elena SarychevaE3S Web Conf., 210 (2020) 05018DOI: https://doi.org/10.1051/e3sconf/202021005018