English Name
Time
Details from Source
SPA V
Manifesto Project
spa
ParlGov
SP
Wikipedia
CHES
SP SPA
CLEA
Sopa
SoPaAn
EJPR PDY
PS
V-Party
SPA
Wikipedia tags
DPI
ESS prtc*
ESS prtv*
Huber / Inglehart (1995)
Kitschelt (2013)
PolCon
So
FlSo
WhoGov
CCS
CSES-IMD
Elections Global
EPAC (2018)
EP roll call votes
euandi (GPS)
EU-NED
SPBP
Global Elections DB
GPS 2019
IPOD
SoPa
Jennings / Wlezien
KUREP (2012)
Mackie / Rose (1991)
MAPP
PAGED
PIP
Poll of Polls
vooruit
POPPA
SPa
PPDB (2017)
SoPaAl
Ray (1999)
EES 2014
spSoPaAn
EJS 2000
added: Jan. 31, 2013, 10:28 a.m. — updated: March 12, 2021, 11:15 a.m.