@ARTICLE{715470,
                    author = {Hervada-Sala, C. and Jarauta-Bragulat, E.}
                            ,
                                journal = {Computers and geosciences}
                            ,
                                year = {2004}
                            ,
                                month = {Aug}
                            ,
                                volume = {30}
                            ,
                                number = {8}
                            ,
                                pages = {887--897}
                            ,
                                title = {A program to perform Ward's clustering method on several regionalized variables}
                        }