1. W. Pietsch, Size Enlargement by Agglomeration, Wiley, Chichester, England, Otto Salle Verlag, Frankfurt/M, Germany, and Verlag Sauerländer Aarau, Switzerland, 1991.
2. Biennial Proceedings of IBA (International Briquetting Association), today Institute for Briquetting and Agglomeration, Buffalo Grove, IL, USA, 1949, 1951, 1953,…2001.