{"id":"000087057","type":"book","title":"Tracing technique as a contribution to karstology : past experiences, new directions","pages":"425-440","container-title":"Contribución del estudio científico de las cavidades kársticas al conocimiento geológico ; I Simposio de Geología Cueva de Nerja (Nerja, 17.-20. junio 1999","author":[{"family":"Meus","given":"Ph."}]}