https://www.ideals.illinois.edu/bitstream/handle/2142/41476/crl_52_02_125_opt.pdf?sequence=2&isAllowed=y
petersuber's tagged items 03/01/1991
https://documents.ats.aq/keydocs/vol_1/vol1_2_AT_Antarctic_Treaty_e.pdf
petersuber's tagged items 06/23/1961
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC234170/pdf/mlab00299-0067.pdf
petersuber's tagged items 05/20/1935
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