@InProceedings{hernandez:CN:1999:b,
      AUTHOR = {Hern{\~A}�ndez, J.L.},
      TITLE = {Ense{\~A}�anza matem{\~A}�tica correcta e interpretaci{\~A}�n f{\~A}�sica de la reconstructibilidad/observabilidad de sistemas lineales invariantes.},
      YEAR = {1999},
      BOOKTITLE = {13er Congreso Chileno de Educaci{\~A}�n en Ingenier{\~A}�a.},
      ADDRESS = { Concepci{\~A}�n, Chile. CD rom.},
      NOTE = {CN}
}