%0 Generic %T Ridge/Valley-like structures: Creases, separatrices and drainage patterns %A Antonio Lopez %D 1997 %F Antonio Lopez1997 %O ADAS %O exported from refbase (http://refbase.cvc.uab.es/show.php?record=488), last updated on Wed, 29 Jun 2011 17:53:09 +0200 %9 miscellaneous %U homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/LOPEZ/cvonline.html