National Monuments Service. "Historical Environment Viewer". Archaeological Survey of Ireland. Archived from the original on 16 July 2019. Retrieved 24 February 2020.
Flanagan, David L. (23 August 2007). A Spatial Analysis Of Stone Circles In Southwestern Ireland (PhD Thesis). University of Texas at Arlington. hdl:10106/427.
For the Scottish circles Ruggles & Burl (1985) found that alignments of cup marks gave the strongest suggestion of lunar alignment,[50] but there are few cup marks on the axial stone circles in Ireland. However, Drombeg's axial stone is cup marked.[6] Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Freeman, P. R.; Elmore, W. (1979). "A Test for the Significance of Astronomical Alignments". Journal for the History of Astronomy: Archaeoastronomy Supplement. 10: S86–S96. Bibcode:1979JHAS...10...86F. ISSN0142-7253. and Patrick, J.; Freeman, P.R (1883). "Revised Surveys of Cork-Kerry Stone Circles". Journal for the History of Astronomy, Archaeoastronomy Supplement. 14: S50–S56. Bibcode:1983JHAS...14...50P. ISSN0142-7253.
Ruggles & Burl (1985), p. S58. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Ruggles & Burl (1985), pp. S45–S50, S58. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Ruggles & Burl (1985), pp. S34–S41. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Ashmore, Patrick (2000). "Essay Review: Astronomy in Prehistoric Britain and Ireland, by Clive Ruggles". Journal for the History of Astronomy: Archaeoastronomy Supplement. 31: S81. Bibcode:2000JHAS...31...77A. ISSN0142-7253.
Ruggles & Burl (1985), p. S56. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Ruggles, Clive (February 2002). "Meeting contribution: Beyond Stonehenge: ancient astronomy at home and abroad". Journal of the British Astronomical Association. 112 (1): 42–43. Bibcode:2002JBAA..112...42R.
Wilson, Michael (11 October 2006). "Cork-Kerry type Axial Stone Circles". megalithic sites + whole horizon analysis = prehistoric horizon calendars. Archived from the original on 29 September 2019. Retrieved 24 February 2020.
National Monuments Service. "Historical Environment Viewer". Archaeological Survey of Ireland. Archived from the original on 16 July 2019. Retrieved 24 February 2020.
Wilson, Michael (11 October 2006). "Cork-Kerry type Axial Stone Circles". megalithic sites + whole horizon analysis = prehistoric horizon calendars. Archived from the original on 29 September 2019. Retrieved 24 February 2020.
For the Scottish circles Ruggles & Burl (1985) found that alignments of cup marks gave the strongest suggestion of lunar alignment,[50] but there are few cup marks on the axial stone circles in Ireland. However, Drombeg's axial stone is cup marked.[6] Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Freeman, P. R.; Elmore, W. (1979). "A Test for the Significance of Astronomical Alignments". Journal for the History of Astronomy: Archaeoastronomy Supplement. 10: S86–S96. Bibcode:1979JHAS...10...86F. ISSN0142-7253. and Patrick, J.; Freeman, P.R (1883). "Revised Surveys of Cork-Kerry Stone Circles". Journal for the History of Astronomy, Archaeoastronomy Supplement. 14: S50–S56. Bibcode:1983JHAS...14...50P. ISSN0142-7253.
Ruggles & Burl (1985), p. S58. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Ruggles & Burl (1985), pp. S45–S50, S58. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Ruggles & Burl (1985), pp. S34–S41. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.
Ashmore, Patrick (2000). "Essay Review: Astronomy in Prehistoric Britain and Ireland, by Clive Ruggles". Journal for the History of Astronomy: Archaeoastronomy Supplement. 31: S81. Bibcode:2000JHAS...31...77A. ISSN0142-7253.
Ruggles & Burl (1985), p. S56. Ruggles, C. L. N.; Burl, H. A. W. (1985). "A New Study of the Aberdeenshire Recumbent Stone Circles, 2: Interpretation". Journal for the History of Astronomy, Archaeoastronomy Supplement. 16: S25–S60. Bibcode:1985JHAS...16...25R. ISSN0142-7253.