Search for associations containing young stars (SACY) - I. Sample and searching methodC. A. O. Torres, G. R. Quast, L. da Silva, R. de la Reza, C. H. F. Melo and M. SterzikA&A, 460 3 (2006) 695-708DOI: https://doi.org/10.1051/0004-6361:20065602