Canonical- systematic form for codes in hierarchical poset metrics. - Luciano Vianna Felix; Marcelo Firer (Adv. Math. Commun., 2012)

Linear codes on posets with extension property. - Alexander Barg; Luciano Vianna Felix; Marcelo Firer; Marcos Vinicius Spreafico (Discret. Math., 2014)

Classification of codes relative to hierarchical order and extension property. - Luciano Vianna Felix (2014)