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science.gov

Mar 01, 2018 · Three dimensional Image Reconstruction in J PET Using Filtered Back projection Method. NASA Astrophysics Data System (ADS) Shopa, R. Y.; Klimaszewski, K.; Kowalski, P

science.gov

Mar 01, 2018 · Nonlinear Attitude Filtering Methods. NASA Technical Reports Server (NTRS) Markley, F. Landis; Crassidis, John L.; Cheng, Yang. 2005 01 01. This paper provides a survey of modern

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