1. The Archaeological Use and Distribution of Mollusca in the Maya Lowlands;Andrews,1969
2. El comercio Clásico de obsidiana: rutas entre tierras altas y tierras bajas en el área Maya;Arnauld;Lat. Am. Antiq,1990
3. Pottery, potters, palaces, and polities: some socioeconomic and political implications of Late Classic Maya ceramic industries;Ball,1993
4. Tombs and burials: in the early classic acropolis at Copan;Bell,2004
5. Changes in Sr/Ca, Ba/Ca, and 87Sr/86Sr ratios between trophic levels in two forest ecosystems in the northeastern U.S.A;Blum;Biogeochemistry,2000