Andrusyak A, Grydzhuk J, Dzhus A, Steliga I. Developing a method for the assessment of axial load in arbitrary cross-sections of the column of pumping rods. EEJET [Internet]. 2017Feb.28 [cited 2024Aug.15];1(7 (85):32-7. Available from: https://journals.uran.ua/eejet/article/view/92860