English Name
Time
Share
Wikipedia
Party Facts ID
1931 · PSLPiast 1931 · PSL-W 1931 · SCh 1991 · ZSL
Manifesto Project
PSL
ParlGov
PoStLu
CHES
CLEA
EJPR PDY
V-Party
Wikipedia tags
DPI
ESS prtc*
ESS prtv*
Huber / Inglehart (1995)
Kitschelt (2013)
PolCon
PoPePa
PPMD (2006)
WhoGov
World Values Survey
CCDD 2018
CSES-IMD
PoPeorPePa
Elections Global
EPAC (2018)
ERDDA (2013)
euandi (GPS)
EU-NED
Global Elections DB
KWPeMoPeAc
SuKWPoPePa
KWPoPePa
GPS 2019
Jennings / Wlezien
KUREP (2012)
Leaders Global
MAPP
PIP
Poll of Polls
POPPA
PPDB (2017)
TAESD
EES 2014