A Typicon (Typikon) or Ustav is an ecclesiastical book containing liturgical instructions and rubrics for the order of divine services such as the Divine Liturgy, Vespers, Matins, and other church services. The three most well-known Typicons are the Typicon of the Great Church of Constantinople, the Studie Typicon, and the Jerusalem or Sabbaite Monastary Typicon. In Kievan Rus’, the Studite Typikon was thought to have been primarily used, likely brought from the Greek world by Saints Anthony and Theodosius of the Kiev Caves. Roughly by the 15th century, the Rus’ Church and the Orthodox Churches of the slavic rite and effectively switched to the Sabbaite Typicon which remains to this day the received typicon among the Slavs, and the basis of various Slavic typicons printed afterwards. This Typicon is the second edition compiled and published in 1901 in Ungvar (Uzhhorod) by Dr. Alexander Mikita, the canonic of the cathedral in Mukachevo and served as a model and rubric for services in the Greek Catholic Eparchy of Mukachevo, and is an excellent monument of the Carpatho-Rusyn  liturgical tradition. This work is related to the 1899 Lviv Typicon of Dolnitskii and other liturgical works of the Cyrillo-Methodian liturgical tradition