by Ulf Lindoff
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The colour-magnitude distribution of gia...
The open cluster NGC 6031
The open clusters NGC 5617, Ly 2, and Tr...
The open clusters Tr 22 and Ho 17
Photoelectric sequences in Puppis
The ages of open clusters
V-V compact groups of galaxies
X-ray activity in the open cluster IC 46...
Catalogue of star clusters and associati...
Studies of X-ray clusters of galaxies/in...
X-ray archeology in the coma cluster
Dynamics of star clusters