Diskussionspapiere extern
Pablo Antolin, Stefano Scarpetta
Paris: OECD, 1998, (OECD Working Paper No. 204)
Externer Link:http://www.oecd-ilibrary.org/docserver/download/5lgsjhvj855g.pdf?expires=1379490847&id=id&accname=guest&checksum=13C79C999B6A0C3CBC33A51116AC762D