Ladislaus I wa Hungaria
"The letters of Henry IV: Henry thanks Duke Almus for his support and promises him a reward" (2000). In Imperial Lives & Letters of the Eleventh Century (Translated by Theodor E. Mommsen and Karl F. Morrison, with a historical introduction and new suggested readings by Karl F. Morrison, edited by Robert L. Benson). Columbia University Press. pp. 52–100. ISBN|978-0-231-12121-7.