These entries are queried from radb.net using whois, you can try my project getting these.
:AS-STACKLTD as-set: AS-STACKLTD descr: STACKLTD AS-SET tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: STACKLTD-MNT created: 2009-09-02T03:16:49Z last-modified: 2014-05-14T05:07:29Z source: RIPE members: AS29047 members: AS39701 members: AS48679 members: AS-TOMGATE members: AS47144 members: AS199778 remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************