Robertson, H. P. Bemerkung über separierbare Systeme in der Wellenmechanik. Mathematische Annalen. 1928, 98 (1): 749–752. ISSN 0025-5831. doi:10.1007/BF01451624(德语).
Robertson, H. P. On Relativistic Cosmology. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science. 7. 1928, 5 (31): 835–848. doi:10.1080/14786440508564528.
Robertson, H. P. Dynamical effects of radiation in the solar system. Monthly Notices of the Royal Astronomical Society (Royal Astronomical Society). April 1937, 97: 423–438. Bibcode:1937MNRAS..97..423R. doi:10.1093/mnras/97.6.423.
Society for Industrial and Applied Mathematics. H. P. Robertson: 1903–1961. Journal of the Society for Industrial and Applied Mathematics. December 1962, 10 (4): 741–750. JSTOR 2098919.