Kiti̱kal racinali̱dhi̱m ɛ cua gua̱c  mëë ca lat ɛ thaany rɛy 20th-thäncuëri̱, mëë ca lat kɛɛ nhiaam Ɣaɔthi̱ralian-Bri̱ti̱c pilöthöpi̱ Karl Pöpper.