Анон. The device for registration of beam positions of an extralight torsion balance. Russian. 2010 ;26(6):76-81.

Анон. Photoelectronic device for watching the motion of tiny torsion balance beam. 2009 ;25(3):234-240.

Анон. The first experience on the observations of solar eclipses with the help of miniature balance scales. Russian. 2008 ;24(5):401-410.