B 500.426 
:R 500. l.j~bJh. 

lIeasurement activities scientific.-The Measurement 
of scientific end technical activities. 
Proposed standard practice for 
surveys of research and experimental development. 
"Frascati Io!enual". !;Mit Tab.](
Paris): OECD (1976). 139 s. 8 

(Frascati-Manual.)