1. Die selektive Agglomeration Kohle-Mineralstoffkollektiven in feinsten Steinkohlenschlammen;Behrenbeck;Aufbereit.-Tech.,1974
2. Agglomeration in coal preparation;Capes,1971
3. Application of spherical agglomeration to coal preparation;Capes,1976
4. Reply to comments on above paper;Capes,1976
5. Principles of emulsion formation;Gopal,1968