@misc{misc4393f9ad,
title   = {Characterization of the ground state and the first excited states of the ben molecule by the configuration interaction method},
author = {Roberto Neto, O and Machado, F B C and Oruellas, F R},
year = {1990},
booktitle   = {Reuniao Anual da Sociedade Brasileira de Quimica}
}