English Name
Time
Details from Source
VS
Manifesto Project
ParlGov
Wikipedia
CLEA
Ve
Wikipedia tags
CCS
LeSo
ERDDA (2013)
LS
IPOD
LeSoPa
Laver / Hunt
Mackie / Rose (1991)
Morgan (1976)
NPED
LSP
PAGED
PIP
PPMD (all)
Ray (1999)
added: March 5, 2020, 8:26 p.m. — updated: March 12, 2021, 11:16 a.m.