English Name
Time
Details from Source
CD
Manifesto Project
Ce
ParlGov
Wikipedia
CHES
CLEA
EJPR PDY
Wikipedia tags
Huber / Inglehart (1995)
ERDDA (2013)
CPCD
EU-NED
IPOD
CeDe
Mudde (2007)
NPED
PIP
PPMD (all)
Ray (1999)
TAP
PPEPE (2021)
NPPSI
added: March 7, 2020, 1:28 p.m. — updated: March 12, 2021, 11:16 a.m.