1. Spravochnik Inzhenera po Bureniyu (Eds. V. I. Mishchevich and K. A. Sidorov) (Moscow: Nedra: 1984), vol. 1 (in Russian).
2. Burenie Neftyanykh i Gazovykh Skvazhin: Spravochnik (Eds. V. G. Yasov and G. N. Sementsov) (Uzhhorod: Karpaty: 1983) (in Russian).
3. J. Mitchell, Rig Math (Drilbert Engineering Inc.: Technical Training for the Drilling Industry: 2003).
4. Newbuild Report: A Flurry of New Rig Orders Worldwide Shows Faith in a Strong Market for Several Years to Com, World Oil, December 2006.
5. N. V. Stepanov. Modelirovanie i Prognoz Oslozhneniy pri Burenii Skvazhin (Moscow: Nedra: 1989) (in Russian).