propugn sig.b5v seri...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/25039 <http://www.w3.org/nl/lemon/frac#Attestation>
propugn sig.b5v seri...
propugn sig.b5v series ternionum. ... Omnes sunt terniones, praeter E quaternionem a et Q duerniones.