1. I. V. Sadkovskaya and A. I. Eichwald, “Interference U-shaped oil manometer for measurement of low absolute pressures,” Vak. Tekhn. Tekhnol., 13, No. 2, 101–106 (2003).
2. I. V. Sadkovskaya and A. I. Eichwald, “Determining the metrological characteristics of an interference U-shaped oil manometer,” Vak. Tekhn. Tekhnol., 14, No. 2, 103–106 (2004).
3. I. V. Sadkovskaya and A. I. Eichwald, “A laser interferometric oil manometer as the primary standard for absolute pressure in the range 1–1000 Pa,” J. Phys.: Conf. Series (JPCS), 100, 092006 (2008).
4. I. V. Sadkovskaya and A. I. Eichwald, “Influence of capillary effects on the precision of pressure measurements by liquid-level manometers,” Izmer. Tekhn., No. 3, 24–26 (2005);
5. Measur. Techn., 48, No. 3, 237–241 (2005).