%0 Journal Article %T Editorial %A Eduardo Pacheco Jord£żo %J Engenharia Sanitaria e Ambiental %D 2010 %I Brazilian Association of Sanitary and Environmental Engineering %R 10.1590/s1413-41522010000300001 %U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522010000300001