Keller, G., E. BARRERA, B. SCHMITZ, and E. MATTSON. (1993) 1993. “Gradual Mass Extinction, Species Survivorship, and Long-Term Environmental Changes across the Cretaceous-Tertiary Boundary in High Latitudes”. Geological Society of America Bulletin 105 (8): 979-97. doi:10.1130/0016-7606(1993)105<0979:GMESSA>2.3.CO;2.
B. SCHMITZ
First name
B.
Last name
SCHMITZ