TY - BOOK ID - 135387093 TI - How and why does knowledge spill over? the case of biotechnology. AU - Audretsch, David B.. AU - Stephan, Paula E.. PY - 1998 PB - London Centre For Economic Policy Research. Discussion Paper Nr. 1991 - Industrial Organization DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135387093 AB - ER -