@inproceedings{inproceedings7547f35d,
title   = {Ground-based astrometry with the ASPHO: optical-radio reference systems connection},
author = {Martin, V A F and Leister, Nelson Vani and Poppe, P C R and Brito, A A and Matos, L},
year = {2002},
publisher = {IAG/USP},
booktitle   = {Latin America Meeting on Astronomy}
}