1. DIN En 197-1, Cement – Part 1: Composition, specifications and conformity criteria for common cements, Beuth Verlag GmbH.
2. Sulfate attack on concrete;Skalny,2002
3. DIN 4030-2: Assessment of water, soil and gases for their aggressiveness to concrete – Part 2: Sampling and analysis of water and soil samples, Beuth Verlag GmbH.
4. Laser induced plasmas and applications;Radziemski,1989
5. Field instrumentation in atomic spectroscopy;Hou;Microchem J,2000