Folque, Jose. <br/><br/>
Influence of the mean stress on the strength characteristic-s evaluated by one specimen tests / Jose Folque, F. J. Cab-ral Pinto. 

 - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil 
 - 4 p. 
 - Memoria; No.356 / Laboratorio Nacional de Engenharia Civil .