Christensen, A. P. <br/><br/>
Load test on thin pretensioned pavement slabs / by A. P. Ch-ristensen and R. L. Janes. 

 - Skokie, Illinois : atories, Development Department 
 - 24 p. 
 - Bulletin D87 / Portland Cement Association, Research and De-velopment Laboratories, Development Department .
<br/><br/> "Authorized reprint from Highway Research Record, Number 60-, pp. 77-94 (1964)".