"Top 50 Prodejní". Tsjekkiske album. CNS IFPI. Note: On the chart page, select 201647 on the field besides the word "Zobrazit", and then click over the word to retrieve the correct chart data. Henta 20. juli 2019.
Unterberger, Richie (14. november 2017). «EXCLUSIVE: Unseen Footage of Pink Floyd Playing in 1970». KQED. Henta 9. oktober 2018. «After months of negotiations, KQED has been granted the right to exclusively premiere [...] one of those songs, «Astronomy Domine.»»