@article{article49b3f162,
title   = {Proper motions of the optically visible open clusters based on the UCAC4 catalog},
author = {Dias, W S and Monteiro, H. and Caetano, T. C and Lépine, Jacques Raymond Daniel and Assafin, M and Oliveira, A. F.},
year = {2014},
doi = {10.1051/0004-6361/201323226},
journal   = {Astronomy & Astrophysics}
}