stˈɑːəl ænd dˈʌn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi tˈuː fˈaʊnd ðˈæt, æz wˈeɪst flˈeɪk sˈaɪz dˈiːkɹiːsᵻz fɹʌm ɪnˈɪʃəl tə fˈaɪnəl stˈeɪdʒᵻz ɪn baɪfˈeɪs pɹədˈʌkʃən, sˌɪstəmˈæɾɪk tʃˈeɪndʒᵻz ɪn flˈeɪk sˈaɪz kæn biː jˈuːzd tʊ aɪdˈɛntᵻfˌaɪ stˈeɪdʒᵻz ʌv ɹᵻdˈʌkʃən ɪn ɐnˈɑːnəməs dˈɛbɪɾɪdʒ sˈæmpəlz θɹuː kəmpˈæɹɪsən wɪð ɛkspˌɛɹɪmˈɛntəl ɐsˈɛmblɪdʒᵻz.
Stahle and Dunn (1982) found that, as waste flake size decreases from initial to final stages in biface production, systematic changes in flake size can be used to identify stages of reduction in anonymous debitage samples through comparison with experimental assemblages.