00301naa a2200121 a 450000100080000000500110000800800410001910000170006024500330007726000090011065300120011977300480013110061862015-10-23       2003    bl uuuu     u00u1 u    #d1 aSHALDERS, P.  aSilagembcomo evitar perdas.  c2003  aSilagem  tBoletim Selita, ano 52gn. 631, p. 8, 2003.