@article{92031,
      note = {Prepared by V. Lukashik and E. Romanchik.},
      author = {Lukasik, W. and Romanchik, E.},
      url = {http://digitallibrary.un.org/record/92031},
      title = {Topic 1, Aspects of the study of the physico-mechanical  and physico-chemical characteristics of waste from coal  mining and preparation, and research methods used :  classification of waste from coal preparation as a raw  material in the production of building materials : summary  /},
      publisher = {UN,},
      recid = {92031},
      pages = {[1] p.},
      address = {Geneva :. 1983-06-20},
      year = {1983},
      month = {Jun},
}