@ARTICLE(Alc07x,
 author = "R. Alcal\'a and J. Alcal\'a-Fdez and F. Herrera and J. Otero",
 title = "Genetic Learning of Accurate and Compact Fuzzy Rule Based Systems Based on the 2-Tuples Linguistic Representation",
 journal = "International Journal of Approximate Reasoning",
 year = "2007",
 volume = "44",
 number = "1",
 pages = "45-64"
)