1. I. I. Kantor, Research and railway design (ICTs Akademkniga, 2003), p. 288.
2. Essays on the history of technology in Russia. http://nplit.ru/books/item/f00/s00/z0000040/st002.shtml.
3. Technical instructions for construction of the railway subgrade (Transzheldorizdat, 1947), p. 226.
4. Specifications for design of normal gauge railways. TUP-53 (Transzheldorizdat, 1954), p. 150.
5. Specifications for construction of the railway subgrade. SN 61-59 (Gosstroyizdat, 1960), p. 209.