1. Effect of atmospheric pollutants (SO2/NO2/Cl2/H2S) on marble;Babu Rao;Br. Archeol. Cult. Res. Inst. Res. Bull.,1982
2. Preliminary results from the analysis of stone tablets from the National Materials Exposure Programme (NMEP);Butlin,1992
3. Relations between corrision of sandstone and uptake rates of air pollutants at Cologne Cathedral;Efes,1976
4. A recent survey of air pollution in Venice in relation to the deterioration of marble and stone;Fassini;Lithoclasia,1976
5. Marble weathering and air pollution in Philadelphia;Feddema;Atmospheric Environment,1987