Novgorod First Chronicle entries about Finnish wars, "1142". Archived from the original on 2007-09-27.,
"1143". Archived from the original on 2007-09-27.. In Swedish.
Novgorod First Chronicle entry about the war, "1149". Archived from the original on 2007-09-27..
Novgorod First Chronicle entries about the war, "1186". Archived from the original on 2007-09-27.. In Swedish.
Novgorod First Chronicle entries about the war, "1191". Archived from the original on 2007-09-27.. In Swedish.
Suomen Museo 2002. See page 66. The book can be ordered from the Finnish Antiquarian Society. Note that the Latin word "Dux" came to mean "Duke" only in the late 13th century and was used in the meaning of Jarl earlier.
Intr. C. Raymond Beazley, A. A. Shakhmatov (London, 1914). "The Chronicle of Novgorod 1016-1471"(PDF). Retrieved 17 July 2017.{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
Novgorod First Chronicle entries about Finnish wars, "1142". Archived from the original on 2007-09-27.,
"1143". Archived from the original on 2007-09-27.. In Swedish.
Novgorod First Chronicle entry about the war, "1149". Archived from the original on 2007-09-27..
Novgorod First Chronicle entries about the war, "1186". Archived from the original on 2007-09-27.. In Swedish.
Novgorod First Chronicle entries about the war, "1191". Archived from the original on 2007-09-27.. In Swedish.