Across the BeringStrait. The Atlantic. 1 July 2015 [4 February 2019]. (原始内容存档于2018-10-13). About InterBering. InterBering. InterBering, LLC. [4 February
Sciences》提出;另一方面,Michael Fortescue亦獨立地在他的新作《Language Relations Across BeringStrait》裡提出這個語系存在的可能。Fortescue在書的第一頁這樣寫: I have attempted throughout to find
relations across BeringStrait: reappraising the archaeological and linguistic evidence. Fortescue, Michael. Language relations across BeringStrait: reappraising