@inproceedings{H2004,
author = {F. Herrera},
title = {Sistemas Difusos Evolutivos},
booktitle = {Proceedings of the XII Congreso Espa{~n}ol sobre Tecnolog\'ia y L\'ogica Fuzzy({ESTYLF04})},
city = {Ja\'en},
country = {Spain},
pages = {1--8},
year = {2004}
}