Just in case you need it, the standard repository list can be found in /etc/apt/sources.list. This one is for NL:
#deb cdrom:[Debian GNU/Linux 8.1.0 _Jessie_ - Official i386 NETINST Binary-1 20150606-12:58]/ jessie main deb http://ftp.nl.debian.org/debian/ jessie main deb-src http://ftp.nl.debian.org/debian/ jessie main deb http://security.debian.org/ jessie/updates main deb-src http://security.debian.org/ jessie/updates main # jessie-updates, previously known as 'volatile' deb http://ftp.nl.debian.org/debian/ jessie-updates main deb-src http://ftp.nl.debian.org/debian/ jessie-updates main