 Complete the following phrase:  Ten copies of the book are known to exist today; none is complete, though only the first and the last leaf are not present in any of them. The copies are kept in Belgrade two, Kiev, Krka Monastery, Lvov, Novi Sad, Patriarchate of Peć, Prague, Saint Petersburg, and Zagreb. The book is printed in uncial Cyrillic with elements of cursive, in the orthography of the Resava literary school. Beside the Psalms, it contains the Canticles, Horologion, Menologion, and other Orthodox religious texts. There are three additional texts, one of which describes the 