Published
              
  
  Influence of nitrogen dioxide and acetylene on marbles, ceramics and pigment
by 
      Roubani-Kalantzopoulou F., Agelakopoulou T., Bassiotis  I., Margariti S., Siokos  V. and Metaxa E. 
by Kalabokas P.D., Viras L.G., Repapis C.C.