Cases:
Carlton v. Babbitt, 900 F.Supp 526 (1995)

Articles:
Grizzly Bear Factsheet
Listing a Species as Threatened or Endangered 
U.S. Federal Endangered and Threatened Species by Calendar Year
Interagency Grizzly Bear Guidelines
Grizzly Bear Recovery Plan

CFRs:
50 CFR 424.01-424.21