The following rules are mainly drawn from the excellent _Ortología y
métrica_ of A. Bello, published in his _Obras completas_, Santiago de
Chile, 1884, vol. V. Other treatises that may be consulted are E. Benot,
_Prosodia castellana y versificación_, Madrid, 1892; F. Hanssen, _Notas
á la prosodia castellana_, Santiago de Chile, 1900 (in the _Anales de la
Universidad_); _Id._, _Miscelánea de versificación castellana_, _ibid._,
1897; _Id._, _Zur lateinischen und romanischen Metrik_, Valparaiso, 1901
(reprint from the _Verhandlungen des deutschen Wissenschaftvereins_,
vol. IV, Santiago de Chile). Cf. also the remarks of E. Stengel in his
_Romanische Verslehre_ (pubd. in Gröbers _Grundriss der romanischen
Philologie_, vol. II, part I, Strasburg, 1893) and of G. Baist in his
_Spanische Literatur_ (pubd. _ibid._, vol. II, part II, Strasburg,
1897).