Wolfgang E. Kerzendord, David Yong, Brian P. Schmidt, Joshua D. Simon, C. Simon Jeffrey, Jay ANderson, Philipp Podsiadlowski, Avishay Gal-Yam, Jeffrey M. Silverman, Alexei V. FIlippenko, Ken'ichi Nomoti, Simon J. Murphy, Michael Bessell, Kim A. Venn, Ryan J. Foley: A High-resolution Spectroscopic Search for the Remaining Donor for Tycho's Supernova. The Astrophysical Journal, 2007, nro 774:2. doi:10.1088/0004-637X/774/2/99Bibcode:2013ApJ...774...99KarXiv:1210.2713Artikkelin verkkoversio.
KS Wood, JF Meekins, DJ Yentis, HW Smathers, RD Bleach: The HEAO A-1 X-ray source catalog. Astrophys. J. Suppl. Ser., Joulukuu 1984, 56. vsk, nro 12, s. 507–649. doi:10.1086/190992Bibcode:1984ApJS...56..507W
Brian J. Williams, Lausa Chomiuk, John W. Hewitt, John M. Blondin, Kazimierz J. Borkowski, Parviz Ghavamiam, Robert Petre, Stephen P. Reynolds: An X-ray and Radio Study of the Varying Expansion Velocities in Tycho's Supernova Remnant. The Astrophysical Journal, 6.4.2016, nro 823:2. doi:10.3847/2041-8205/823/2/L32Bibcode:2016ApJ...823L..32W
Asami Hayato, Hiroya Yamaguchi, Tori Tamagawa, Satoru Katsuda, Una Hwang, John Patrick Hughes, Midori Ozawa, Aya Bamba, Kenzo Kinugasa: Expansion Velocity of Ejecta in Tycho's Supernova Remnant Measured by Doppler Broadened X-ray Line Emission. The Astrophysical Journal, 2010, nro 725, s. 894–903. doi:10.1088/0004-637X/725/1/894Bibcode:2010ApJ...725..894HArtikkelin verkkoversio.
Wolfgang E. Kerzendord, David Yong, Brian P. Schmidt, Joshua D. Simon, C. Simon Jeffrey, Jay ANderson, Philipp Podsiadlowski, Avishay Gal-Yam, Jeffrey M. Silverman, Alexei V. FIlippenko, Ken'ichi Nomoti, Simon J. Murphy, Michael Bessell, Kim A. Venn, Ryan J. Foley: A High-resolution Spectroscopic Search for the Remaining Donor for Tycho's Supernova. The Astrophysical Journal, 2007, nro 774:2. doi:10.1088/0004-637X/774/2/99Bibcode:2013ApJ...774...99KarXiv:1210.2713Artikkelin verkkoversio.
KS Wood, JF Meekins, DJ Yentis, HW Smathers, RD Bleach: The HEAO A-1 X-ray source catalog. Astrophys. J. Suppl. Ser., Joulukuu 1984, 56. vsk, nro 12, s. 507–649. doi:10.1086/190992Bibcode:1984ApJS...56..507W
Brian J. Williams, Lausa Chomiuk, John W. Hewitt, John M. Blondin, Kazimierz J. Borkowski, Parviz Ghavamiam, Robert Petre, Stephen P. Reynolds: An X-ray and Radio Study of the Varying Expansion Velocities in Tycho's Supernova Remnant. The Astrophysical Journal, 6.4.2016, nro 823:2. doi:10.3847/2041-8205/823/2/L32Bibcode:2016ApJ...823L..32W
Asami Hayato, Hiroya Yamaguchi, Tori Tamagawa, Satoru Katsuda, Una Hwang, John Patrick Hughes, Midori Ozawa, Aya Bamba, Kenzo Kinugasa: Expansion Velocity of Ejecta in Tycho's Supernova Remnant Measured by Doppler Broadened X-ray Line Emission. The Astrophysical Journal, 2010, nro 725, s. 894–903. doi:10.1088/0004-637X/725/1/894Bibcode:2010ApJ...725..894HArtikkelin verkkoversio.
Wolfgang E. Kerzendord, David Yong, Brian P. Schmidt, Joshua D. Simon, C. Simon Jeffrey, Jay ANderson, Philipp Podsiadlowski, Avishay Gal-Yam, Jeffrey M. Silverman, Alexei V. FIlippenko, Ken'ichi Nomoti, Simon J. Murphy, Michael Bessell, Kim A. Venn, Ryan J. Foley: A High-resolution Spectroscopic Search for the Remaining Donor for Tycho's Supernova. The Astrophysical Journal, 2007, nro 774:2. doi:10.1088/0004-637X/774/2/99Bibcode:2013ApJ...774...99KarXiv:1210.2713Artikkelin verkkoversio.
Asami Hayato, Hiroya Yamaguchi, Tori Tamagawa, Satoru Katsuda, Una Hwang, John Patrick Hughes, Midori Ozawa, Aya Bamba, Kenzo Kinugasa: Expansion Velocity of Ejecta in Tycho's Supernova Remnant Measured by Doppler Broadened X-ray Line Emission. The Astrophysical Journal, 2010, nro 725, s. 894–903. doi:10.1088/0004-637X/725/1/894Bibcode:2010ApJ...725..894HArtikkelin verkkoversio.
Wolfgang E. Kerzendord, David Yong, Brian P. Schmidt, Joshua D. Simon, C. Simon Jeffrey, Jay ANderson, Philipp Podsiadlowski, Avishay Gal-Yam, Jeffrey M. Silverman, Alexei V. FIlippenko, Ken'ichi Nomoti, Simon J. Murphy, Michael Bessell, Kim A. Venn, Ryan J. Foley: A High-resolution Spectroscopic Search for the Remaining Donor for Tycho's Supernova. The Astrophysical Journal, 2007, nro 774:2. doi:10.1088/0004-637X/774/2/99Bibcode:2013ApJ...774...99KarXiv:1210.2713Artikkelin verkkoversio.
Bartholomäus Reisacher: De mirabili Novae ac splendidis stellae, Mense Nouembri anni 1572, primum conspectæ, ac etiam nunc apparentis, Phœnomeno. Wien: Caspari Stainhoseri, 1573. Teoksen verkkoversio. (latinaksi)
usal.es
gredos.usal.es
Jerönimo Muñoz: Libro del nuevo Cometa, y del lugar donde se hazen; y como se vera por las Parallaxes quan lexos estan de tierra; y del Prognostico deste. Valencia. Määritä julkaisija!Teoksen verkkoversio. (espanjaksi)