1968, John-Erik Oscar Elmberg, Balance and circulation: Aspects of tradition and change among the Mejprat of Irian Brapat, page 51:Classification reflected category oppositions (superior—inferior, close—distant), mostly applied to a sibling pair or a married couple. From the terms of the B—Z pair, the characteristic feature of complementary opposition can be deduced. The classification was applied on a feminacentric principle in a majority of cases ... and viricentric ...
