@Article{ MERÍ_QUERO:971-979,

author = { FRANCISCO JAVIER MERÍ DE LA MAZA and ALICIA QUERO DE LA ROSA } ,

title = { On the numerical index of absolute symmetric norms on the plane },

journal = { Linear and Multilinear Algebra },

year = { 2021 },

volume = { 69 },

pages = { 971-979 },

}