English Name
Time
Details from Source
DP
Manifesto Project
ParlGov
Wikipedia
EJPR PDY
Wikipedia tags
PolCon
PrDe
EP roll call votes
DP PDUP CU
IPOD
Laver / Hunt
Mackie / Rose (1991)
AvOp
MAPP
PIP
PPMD (all)
Ray (1999)
TAP
NPPSI
PD
added: July 11, 2022, 11:51 p.m. — updated: July 11, 2022, 11:51 p.m.