Toropov, N.A. <br/><br/>
Mechanism of polycondensation of calcium hydrosilicates: a -case of spectroscopic investigations / by N.A. Toropov, Ja.- I. Ryskin, N.G. Stavitskaya 

 - Moscow : RILEM 
 - 22 p. 
<br/><br/> "RILEM International Conference on the Problems of Accelera-ted Hardening of Concrete in Manufacturing Precast Reinforc-ed Concrete Units, Moscow, july 1964"