Between the 1950s and 1970s, Frikel wrote seven works (Frikel 1957, 1958, 1960, 1961a,b, 1964, 1971, 1973) relating to the Tiriyó.
Between the 1950s and 1970s, Frikel produced seven documents (Frikel 1957, 1958, 1960, 1961a,b, 1964, 1971, 1973) pertaining to the Tiriyó.