Kristensen, B.W. <br/><br/>
Equipment for quick measurement of compressive stress-strai-n diagrams for concrete specimes / by B.W. Kristensen and M-. Lystbeek. 

 - Karlstruf, [Dinamarca] : Concrete Research Laboratory 
 - [4] p. 
 - Internal report ; no. 87 / Concrete Research Laboratory .