@Article{ CORNET:185-190,

author = { FERNANDO CORNET SÁNCHEZ DEL ÁGUILA } ,

title = { Chiral Perturbation Theory for ¿ ¿ ¿º¿¿ },

journal = { Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics },

year = { 1992 },

volume = { 276 },

pages = { 185-190 },

}