Hobbs, D.W. <br/><br/>
Strength and deformation properties of plain concrete subje-ct to combined stress part 3 : results obtained on a range -of flint gravel aggregate concrets / D.W. Hobbs. 

 - London : Cement and Concrete Association 
 - 20 p. 
 - Technical report ; 42.497 / Cement and Concrete Association .