. . . "National conference on GIS research UK (01 ; 1993 ; Keele, GB)"@fr . "GISRUK 93 (Keele, GB)"@fr . "National conference on GIS research UK (01 ; 1993 ; Keele, GB)"@fr . . "1995-12-12" . . . "1995-12-12" . . . . "12493160"^^ . . . . . . "1993"^^ . . . . "1993"^^ . .