Central Building Research Institute, Roorkee, India

Nature ◽  
1965 ◽  
Vol 208 (5011) ◽  
pp. 629-630
2009 ◽  
Vol 52 (10) ◽  
pp. 1055-1061
Author(s):  
N. A. Demidov ◽  
V. I. Vasil’ev ◽  
V. G. Vorontsov ◽  
V. S. Gorev ◽  
S. A. Kozlov ◽  
...  

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