@article{article6a6f0bc0, title = {A survey of Early-Type Stars based on the two micron all sky survey database}, author = {Ortiz, R. and Malacarne, M and Wilhelm, R and Costa, R D D and Rossi, S and Maciel, Walter Junqueira and Costa, A. F. M}, year = {2007}, journal = {The Astronomical Journal} }