Chemistry for protection of the environment, 1987 : proceedings of the sixth international conference, Torino, Italy, 15-18 September 1987 / ed. by L. Pawlowski ... [et al.]Thermal solid waste utilisation in regular and industrial facilities / ed. by Lucjan Pawłowski, Marzenna R. Dudzińska and Marjorie A. GonzalezChemistry for protection of the environment : proceedings of an International Conference, Toulouse, France, 19-25 September 1983 / ed. by L. Pawlowski, A.J. Verdier, W.J. LacyChemistry for protection of the environment, 1985 : proceedings of the fifth international conference, Leuven, Belgium, 9-13 September 1985 / ed. by L. Pawlowski, G. Alaerts, W.J. Lacy