González-García, A. César; Šprajc, Ivan (2016). "Astronomical significance of architectural orientations in the Maya Lowlands: A statistical approach". Journal of Archaeological Science: Reports. 9: 191–202. Bibcode:2016JArSR...9..191G. doi:10.1016/j.jasrep.2016.07.020.
González-García, A. César; Šprajc, Ivan (2016). "Astronomical significance of architectural orientations in the Maya Lowlands: A statistical approach". Journal of Archaeological Science: Reports. 9: 191–202. Bibcode:2016JArSR...9..191G. doi:10.1016/j.jasrep.2016.07.020.