1. I. Odler, U. Duckstein, Th. Becker: On the combined Effect of Water soluble Lignosulfonates and Carbonates on Portland Cement and Clinker Pastes I. Physical Properties.
2. Cement Paste Microstructure — an overview at several levels;Diamond,1976
3. Setting of Cement—Part 1: Reaction and Development of Structure;Locher;Zement-Kalk-Gips,1976