Miller, Brent V; Samson, Scott D; D'Lemos, Richard S (Oktober 1999): «Time span of plutonism, fabric development, and cooling in a Neoproterozoic magmatic arc segment: U–Pb age constraints from syn-tectonic plutons, Sark, Channel Islands, UK» i: Tectonophysics. 312 (1), s. 79–95. Bibcode:1999Tectp.312...79M. doi:10.1016/S0040-1951(99)00172-9.
Miller, Brent V; Samson, Scott D; D'Lemos, Richard S (Oktober 1999): «Time span of plutonism, fabric development, and cooling in a Neoproterozoic magmatic arc segment: U–Pb age constraints from syn-tectonic plutons, Sark, Channel Islands, UK» i: Tectonophysics. 312 (1), s. 79–95. Bibcode:1999Tectp.312...79M. doi:10.1016/S0040-1951(99)00172-9.
«Death of a Dame»Arkivert 30. juni 2013 hos Wayback Machine., Time. 29. juli 1974. Sitat: «Nearly all 560 subjects of the medieval fiefdom of Sark gathered last week around a gnarled oak tree in their parish churchyard to mourn Dame Sibyl Mary Collings Beaumont Hathaway, 21st Seigneur of Sark.»
«Death of a Dame»Arkivert 30. juni 2013 hos Wayback Machine., Time. 29. juli 1974. Sitat: «Nearly all 560 subjects of the medieval fiefdom of Sark gathered last week around a gnarled oak tree in their parish churchyard to mourn Dame Sibyl Mary Collings Beaumont Hathaway, 21st Seigneur of Sark.»