op 5 p.186-187 Quoni...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/41365 <http://www.w3.org/nl/lemon/frac#Attestation>
op 5 p.186-187 Quoni...
op 5 p.186-187 Quoniam autem divisio illa .. fit ... in sumendis sex mediis proportionalibus, per septisectionem, ... : nulla alia methodus inserviet ad inveniendas medias quae sunt numero pares, ut 2,4, 6, 8, etc, praeter anguli semirecti {009253.}trisectionem, {021543.}quinquisectionem, septisectionem etc.