Constellation Similarity Assertions
Maybe-Same Assertions
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Petschek, Harry, 1930-
http://n2t.net/ark:/99166/w6k38cg0 (person)
Geophysicist. Avco Everett Research Laboratory, 1956-1981; Omni-Flow, 1982-1986; AutoGen Instruments, 1988-1993; Boston University, 1994-. From the description of Response to History of Geophysics survey, 1998. (Unknown). WorldCat record id: 81106575 ...