1. ^Mihály Balázs, Gizella Keserű György Enyedi and Central European Unitarianism in the 16-17th ... 2000 "István Geleji Katona, an important figure of the 17th-century Transylvanian Reformed Church, court-chaplain to the Transylvanian Prince, and one of those who initiated the attack on the Unitarians of Transylvania which had the most ..."
2. ^István Keul Early modern religious communities in East-Central Europe 2009 Page 221 "To be sure, Reformed superintendent Geleji Katona wrote in his Titkok titka ( Secret of Secrets, 1645) that György I Rákóczi hat prevented the spread of Sabbatarianism (“the plague of Judaizing”) and “eradicated” the Sabbatarians to such ..."
3. ^Histoire de la littérature hongroise Ignace Kont, Cyrillus Horváth, Albert Kardos - 1900 "Ce goût des détails a amené Katona à réunir en un corps les différents chants d' Eglise. Déjà en qualité de chapelain de Gabriel Bethlen, il était choqué de la diversité de ces chants liturgiques, diversité qui à la longue pourrait nuire "