"Albums : Top 100". Jam!. 31 March 2011. Archived from the original on 31 March 2011. Retrieved 31 March 2011.{{cite web}}: CS1 maint: unfit URL (link)
"Czech Albums – Top 100". ČNS IFPI. Note: On the chart page, select 13.Týden 2011 on the field besides the words "CZ – ALBUMS – TOP 100" to retrieve the correct chart. Retrieved 5 May 2018.