@article{JEMS_2015_17_10_a6,
     author = {Iv\'an Ezequiel Angiono},
     title = {A presentation by generators and relations of {Nichols} algebras of diagonal type and convex orders on root systems},
     journal = {Journal of the European Mathematical Society},
     pages = {2643--2671},
     publisher = {mathdoc},
     volume = {17},
     number = {10},
     year = {2015},
     doi = {10.4171/jems/567},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/567/}
}