Kitabskai︠a︡ mezhdunarodnai︠a︡ shirotnai︠a︡ stant︠s︡ii︠a︡ imeni Ulugbeka /
Shcheglov, Vladimir Petrovich,1904-
Tashkent : Fan,
1981.
Ulugh Beg, 1394-1449.
Astronomical observatories