The Livonian rhymed chronicle. Smith, Jerry Christopher, 1941-, Urban, William L., 1939- (2nd ed., rev. and enl edición). Chicago, IL: Lithuanian Research and Studies Center. 2001. pp. 77-78. ISBN0929700341. OCLC48921064.
The Livonian rhymed chronicle. Smith, Jerry Christopher, 1941-, Urban, William L., 1939- (2nd ed., rev. and enl edición). Chicago, IL: Lithuanian Research and Studies Center. 2001. pp. 78-79. ISBN0929700341. OCLC48921064.