TY - RPRT TI - A 250,000-year climatic record from Great Basin vein calcite: Implications for Milankovitch theory AU - Isaac J. Winograd AU - Tyler B. Coplen AU - Barney J. Szabo AU - Alan C. Riggs PY - 1988 DO - 10.1126/science.242.4883.1275 UR - https://pubs.usgs.gov/publication/70014457 ID - 70014457 ER -