ARTICLE
|
doi:10.20944/preprints202104.0684.v2
Subject:
Business, Economics And Management,
Economics
Keywords:
GNI; GDP; GNIpc; International Economy; Export; Import; Circle; Model
Online: 4 May 2021 (14:23:16 CEST)
ARTICLE
|
doi:10.20944/preprints202104.0663.v1
Subject:
Physical Sciences,
Astronomy And Astrophysics
Keywords:
Solar System, Planetary System, Planet, Satellite, Sun, Earth, Moon, Topology, Circle, Ellipse, Orbit, Trajectory, Orbital Mechanics
Online: 26 April 2021 (12:14:51 CEST)