@misc{misc63758c96, title = {Astrometric reduction for fields observed at the Valinhos CCD meridian circle on the neighborhood of quasars}, author = {Santos Filho, S. and Assafin, Marcelo and Teixeira, Ramachrisna and Benevides-Soares, Paulo and Camargo, J. I. B.}, year = {1999}, booktitle = {Reunião Anual da Sociedade Astronômica Brasileira} }