Trifunac, M.D. <br/><br/>
Laboratory evaluations and instrument corrections of strong--motion accelerograpas / by M.D. Trifunac and D.E. Hudson. 

 - Pasadena, Calif. : Research Laboratory 
 - 113 p. 
 - [Report] ; EERL 70-04 / CALTEC, Earthquake Engineering Rese-arch Laboratory .