?url_ver=Z39.88-2004&rft_id=10.20868%2FUPM.thesis.56455&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Raposo+Pulido%2C+Virginia&rft.aulast=Raposo+Pulido&rft.aufirst=Virginia&rft.degree=Doctoral&rft.date=July+2019&rft.title=Regular+propagators+and+other+techniques+in+orbit+determination+problems&rft.inst=E.T.S.+de+Ingenier%C3%ADa+Aeron%C3%A1utica+y+del+Espacio+(UPM)+%3Chttp%3A%2F%2Foa.upm.es%2Fview%2Finstitution%2FEspacio%2F%3E&rft.tpages=280