@Article{ CORNET:235-237,

author = { FERNANDO CORNET SÁNCHEZ DEL ÁGUILA } ,

title = { Contact Terms in ¿¿¿¿+¿-¿+¿- Transitions },

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

year = { 1981 },

volume = { 107 },

pages = { 235-237 },

}