@misc{indiciae3f14924e5cba, title = {Sr and Nd Data for Upper Eocene Spherule Layers}, author = {Liu, Shaobin and Glass, B. P. and Ngo, H. H. and Papanastassiou, D. A. and Wasserburg, G. J.}, year = {2001}, url = {https://ntrs.nasa.gov/citations/20010044465}, note = {Source identifier: 20010044465} }