For citations:
Lambin A.I. Modelling of unstructured problems in well drilling. Earth sciences and subsoil use. 2019;42(4):502-510. (In Russ.) https://doi.org/10.21285/2686-9993-2019-42-4-502-510
Lambin A.I. Modelling of unstructured problems in well drilling. Earth sciences and subsoil use. 2019;42(4):502-510. (In Russ.) https://doi.org/10.21285/2686-9993-2019-42-4-502-510