1. Mineral occurrence in soil environments;Allen,1989
2. Wet combustion apparatus and procedure for organic and inorganic carbon in soil;Allison,1960
3. Geology and petrography of the Verrucano and Palaeozoic formations of southern Tuscany and northern Lazium (Italy);Azzaro,1976
4. Chemical composition of atmospheric precipitations in the Tuscan Appennines;Barbolani,1988
5. Chlorites and hydroxy-interlayered vermiculite and smectite;Barnhisel,1989