English Name
Time
Details from Source
EA
Manifesto Project
ParlGov
Wikipedia
Wikipedia tags
ESS prtc*
ESS prtv*
Huber / Inglehart (1995)
EPAC (2018)
EP roll call votes
KUREP (2012)
NPED
BS
PIP
BaSo
POPPA
EHBildu
Ray (1999)
added: April 10, 2014, 9:03 p.m. — updated: Feb. 14, 2025, 8:11 a.m.