David, Trevor J.; Hillenbrand, Lynne A. (2015), «The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets», The Astrophysical Journal804 (2): 146, Bibcode:2015ApJ...804..146D, S2CID33401607, arXiv:1501.03154, doi:10.1088/0004-637X/804/2/146..
David, Trevor J.; Hillenbrand, Lynne A. (2015), «The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets», The Astrophysical Journal804 (2): 146, Bibcode:2015ApJ...804..146D, S2CID33401607, arXiv:1501.03154, doi:10.1088/0004-637X/804/2/146..
David, Trevor J.; Hillenbrand, Lynne A. (2015), «The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets», The Astrophysical Journal804 (2): 146, Bibcode:2015ApJ...804..146D, S2CID33401607, arXiv:1501.03154, doi:10.1088/0004-637X/804/2/146..
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David, Trevor J.; Hillenbrand, Lynne A. (2015), «The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets», The Astrophysical Journal804 (2): 146, Bibcode:2015ApJ...804..146D, S2CID33401607, arXiv:1501.03154, doi:10.1088/0004-637X/804/2/146..