Precise CCD determinations of optical positions for radio sources 0716+714 and 0839+187 von Wang, Sh., Tang, Zh.

Volltext

Determinations of optical positions for four extragalactic radio sources with CCD von Tang, Zh., Wang, Sh., Jin, W.

Volltext

Determination of highly precise proper motions for 32 Hipparcos stars from photographic plates von Wang, Sh., Tang, Zh., Jin, W., Wang, J.

Volltext